Which of the following represents an endothermic reaction?H2(g) + F2(g)→ 2 HF(g) AH= -542 kJC(s) + O2(g) → CO2(g) + 235kJ2 H20(1) + 482 kJ → 2 H2(g) + O2(g)There are more than 1 endothermic reactions.None of the reactions are endothermic.

The question is based on the concept of chemical thermodynamics. we have to identify the endothermic…

Which of the following represents an endothermic reaction? H2(g) + F2(g) –→ 2 HF(g) AH= -542 kJ C(s) + O2(g) → CO2(g) + 235kJ O 2 H20(1) + 482 kJ → 2 H2(g) + O2(g) There are more than 1 endothermic reactions. None of the reactions are endothermic.

Which of the following represents an endothermic reaction? H2(g) + F2(g) –→ 2 HF(g) AH= -542 kJ C(s) + O2(g) → CO2(g) + 235kJ O 2 H20(1) + 482 kJ → 2 H2(g) + O2(g) There are more than 1 endothermic reactions. None of the reactions are endothermic.

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter9: Energy For Today

Section: Chapter Questions

Problem 11E: Define each of the following terms: a. heat b. energy c. work d. system e. surroundings f....

See similar textbooks

Related questions

Q: A gas in a system has a constant pressure. The surroundings around the system lose 62 joules (j) of…

A: Internal energy may be defined as the total amount of energy present within a substance and it is…

Q: A chemical system has AE>0, q>0, w 0. Choose the correct statements conceming this system. Choose…

A: This question is related to thermodynamics. Exothermic reactions are those in which heat energy is…

Q: Which of the following is true about an exothermic reaction? O The number of moles of products is…

A: ''In exothermic reaction, heat is released" therefore heat of reaction is negative

Q: A chemical reaction occurs and 64.7 cal is transferred to the system. How many joules is this? is…

A: We have to predict nature of reaction and heat in joules.

Q: In the following reaction, how many moles of CH3OH are required to produce -9.671 x 103 kJ of heat?…

Q: Classify each of the following chemical changes as exothermic or endothermic reaction. Chemical…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 4.33g sample of an unknown salt (MM=116.83g/mol) is dissolved in 150.00g water coffee cup…

Q: How much heat is involved when 68.0 g of N2 are reacted in the reaction: 2N2(g) + 5O2(g) + 2H2O(l) →…

A: Given, the chemical reaction,2N2(g)+5O2(g)+2H2O(l)→4HNO3(aq) ; ∆H =-256 kJamount of heat evolved…

Q: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h? What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

Q: When 1 mole of CH4(g) reacts with H2O(g) to form H2(g) and CO(g) according to the following…

A: Since, 1 mole of CH4(g) reacts with H2O(g) to form H2(g) and CO(g) 206 kJ of energy are absorbed.…

Q: In the following reaction, What quantity in moles of CH₃OH are required to give off 2526 kJ of heat?…

A: Given :- 2 CH₃OH (l) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O(g) ∆H° = -1280. kJ To be calculated :-…

Q: 4. How much work is done by or on the system (state which), in kcal, in a reaction if the internal…

A: To calculate the work done by or on the system , we would Calculate value and sign of w using first…

Q: 2. In order to produce 972 kJ of heat, how many grams of H2 must react? 2 H2 (g) + 02 (g) → 2 H20…

Q: A 1445 kg car is traveling down the road at 96.6 km/h. While traveling at this rate of speed, what…

A: Given : Mass of car = 1445 kg Speed of car = 96.6 km/hr To calculate :- Kinetic energy (in kJ)

Q: In the following reaction, how much heat is released when 3.21 g of CO₂ are produced? C₃H₈ (g) + 5…

A: We have to predict the amount of heat produced.

Q: The reaction of iron(III) oxide(s) with hydrogen(g) to form iron(s) and water(g) proceeds as…

A: Moles of Fe2O3 reacting = mass / molar mass molar mass of Fe2O3 = 160 g/mol Hence moles of Fe2O3 =…

Q: what are the differences between an Exothermic Reaction and an Endothermic Reaction?

A: Differences between an Exothermic Reaction and an Endothermic Reaction:

Q: heat for the combustion of sucrose (table sugar, C12H22O11) is -5,647 kJ for

A: Number of moles = mass/ molar mass Number of moles of O2 = mass of O2/molar mass of O2

Q: In the following reaction, What quantity in moles of CH;OH are required to give off 1501 kJ of heat?…

Q: AU

Q: If the monthly electricity consumption of a household is 6,619 kWh, what is this consumption…

A: 1 kWh = 3600 kJ

Q: A 1467 kg1467 kg car is traveling down the road at 81.0 km/h.81.0 km/h. While traveling at this rate…

Q: Which one of the following is an endothermic process? A Hydrochloric acid and barium hydroxide are…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: Combustion reactions are exothermic. The heat of reaction for the combustion of butane, C,H10, is…

A: Given: The heat of combustion of butane, C4H10 is 687.8 kcal/mol.

Q: Which of the following physical processes is exothermic? a. evaporation of alcohol b. melting of…

A: Concept 1) release of energy is known as exothermic process. 2) absorption of energy is called…

Q: A list of the calorie content of foods indicates that a cup of frozen strawberries contains 224…

A: Change 224 calory to Joule and KJ

Q: which of the following processes is endothermic? propane burns in a gas gril water evaporates from…

A: The energy difference of the products and reactants is known as the energy change of a reaction. If…

Q: What is the Kinetic energy of a 2000-Ib car traveling at 59 miles per hour? (Ib =0.4536 kg, 1 mi=…

A: The Kinetic energy of a 2000-lb car traveling at 59 miles per hour is calculated as,1lb =0.4536…

Q: The reaction of carbon dioxide (g) with hydrogen (g) to form carbon monoxide (g) and water(g)…

A: Recall the given reaction, CO2 g + H2 g → CO g + H2O g12.7 g of CO2 g…

Q: In the following reaction, how many moles of CH₃OH are required to produce -1761 kJ of heat? 2 CH₃OH…

A: Given, the chemical reaction as follows,2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g) , ∆H° =-1280 kJwe are…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given reaction:

Q: The reaction for the combustion of propane is C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l)…

A: Given combustion reaction; C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) delta(H) = -526.3 kcal/mole…

Q: In the following reaction, how many moles of CH3OH are required to produce -2191 kJ of heat? 2 CH3OH…

A: The balanced reaction taking place is given as,

Q: ch of the following processes as endothermic or exothermic and include the sign for AH. opyl alcohol…

A: We habe to categorise given reaction as endothermic or exothermic and tell their ∆H sign

Q: Classify each of the following as endothermic or exothermic. A. A beaker feels cold after a…

A: Exothermic reactions are the reactions that releases heat by increasing the temperature of the…

Q: Part E Classify reaction as exothermic or endothermic. Formation of aluminum oxide and copper from…

A: The reaction in which heat is evolved in products side is known as exothermic reaction.Change in…

Q: When 135 mL of 0.204 M NaCl(aq) and 135 mL of 0.204 M AgNO3(aq), both at 21.5°C, are mixed in a…

A: Coffee cup calorimeter is a steady pressure calorimeter. As such, the heat measured in such a system…

Q: When a chemist burns ammonia according to the reaction below she finds that the reaction releases…

A: First, calculate the moles of ammonia by using its molar mass,

Q: Hydrogen gas reacts with oxygen to form water. 2H2(g)+O2(g)-->2H2O(g) the ethalpy of the chemical…

Q: 2A + 3B → C ΔHrxn = -125 kJ Determine the amount of heat emitted when each of the following…

A: The enthalpy of reaction is based on the molar quantities of reactants that is given by the…

Q: When 130. mL of 0.198 M NaCl(aq) and 130. mL of 0.198 M AgNO3(aq), both at 21.8°C, are mixed in a…

A: When the system release energy then the process is known as exothermic. When the system absorbs…

Q: In the following reaction, how many moles of CH;OH are required to produce -3.871 × 10³ kJ of heat?…

A: The given reaction is:2 CH3OH (l) + 3 O2 (g) → 2 CO2 (g) + 4 H2O (g)∆H° = -1280 kJ⇒ 1280 kJ of…

Q: In the following reaction, how many moles of CH3OH are required to produce -3841 kJ of heat? 2 CH;OH…

A: Given data,Enthalpy=-1280kJThe reaction involved is:2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g)

Q: The ΔE of a system that absorbs 12.4 J of heat and does 4.2 J of work on the surroundings is…

A: Recall the following expression from first law of thermodynamics ∆E=q + wHere,change in…

Q: When 2 moles of CO(g) react with NO(g) to form CO2(g) and N2(g) according to the following equation,…

A: Given that 747 kJ of energy are evolved in the reaction.

Q: Nitromethane (CH3NO2), sometimes used as a fuel in drag racers, burns according to the following…

Q: What are some examples of exothermic and endothermic reactions or processes you've seen in real life…

A: Endothermic reactions are those reactions in which there is a net amount of energy absorbed by the…

Q: In the following reaction, how many grams of CH3OH are required to produce 1.578 x 10' kJ of heat? 2…

Q: 4. Using the data in table 6.1 predict the sign and magnitude of AH ° for each of the following…

A: If the value of change in enthalpy is negative then the process is exothermic which means the energy…

Question

100%

Which of the following represents an endothermic reaction?
H2(g) + F2(g)
→ 2 HF(g) AH= -542 kJ
C(s) + O2(g) → CO2(g) + 235kJ
2 H20(1) + 482 kJ → 2 H2(g) + O2(g)
There are more than 1 endothermic reactions.
None of the reactions are endothermic.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2(aq) and NaBr(aq) are mixed. Pb(NO3)2(aq) + 2 NaBr(aq) PbBr2(s) + 2 NaNO3(aq) rH = ? To measure the enthalpy change, 200. mL. of 0.75 M Pb(NO3)2(aq) and 200. mL of 1.5 M NaBr(aq) are mixed in a coffee-cup calorimeter. The temperature of the mixture rises by 2.44 C. Calculate the enthalpy change for the precipitation of PbBr2(s), in kJ/mol. (Assume the density of the solution is 1.0 g/mL., and its specific heat capacity is 4.2 J/g K.)
Hypothetical elements A2 and B2 react according to the following equation, forming the compound AB. A2(aq)+B2(aq)2AB(aq);H=+271kJ/mol If solutions A2(aq) and B2(aq), starting at the same temperature, are mixed in a coffee-cup calorimeter, the reaction that occurs is a exothermic, and the temperature of the resulting solution rises. b endothermic, and the temperature of the resulting solution rises. c endothermic, and the temperature of the resulting solution falls. d exothermic, and the temperature of the resulting solution falls. e exothermic or endothermic, depending on the original and final temperatures.
A 29.1-mL sample of 1.05 M KOH is mixed with 20.9 mL of 1.07 M HBr in a coffee-cup calorimeter (see Section 6.6 of your text for a description of a coffee-cup calorimeter). The enthalpy of the reaction, written with the lowest whole-number coefficients, is 55.8 kJ. Both solutions are at 21.8C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, and volumes are additive.
Insoluble AgCl(s) precipitates when solutions of AgNO3(aq) and NaCl(aq) are mixed. AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq) rH = ? To measure the energy evolved in this reaction, 250. mL of 0.16 M AgNO3(aq) and 125 mL of 0.32 M NaCl(aq) are mixed in a coffee-cup calorimeter. The temperature of the mixture rises from 21.15 C to 22.90 C. Calculate the enthalpy change for the precipitation of AgCl(s), in kJ/mol. (Assume the density of the solution is 1.0 g/mL and its specific heat capacity is 4.2 J/g K.)
A rebreathing gas mask contains potassium superoxide, KO2, which reacts with moisture in the breath to give oxygen. 4KO2(s)+2H2O(l)4KOH(s)+3O2(g) Estimate the grams of potassium superoxide required to supply a persons oxygen needs for one hour. Assume a person requires 1.00 102 kcal of energy for this time period. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 1.00 102 kcal of heat, calculate the amount of oxygen consumed and hence the amount of KO2 required. The ff0 for glucose(s) is 1273 kJ/mol.
The temperature of the cooling water as it leaves the hot engine of an automobile is 240 F. After it passes through the radiator it has a temperature of 175 F. Calculate the amount of heat transferred from the engine to the surroundings by one gallon of water with a specific heat of 4.184 J/g oC.
9.31 A metal radiator is made from 26.0 kg of iron. The specific heat of iron is 0.449Jg1C1 . How much heat must be supplied to the radiator to raise its temperature from 25.0 to 5 5.0°C?
Define each of the following terms: a. heat b. energy c. work d. system e. surroundings f. exothermic reaction g. endothermic reaction h. enthalpy of reaction i. kinetic energy j. potential energy
Classify each process as exothermic or endothermic. (a) ice melts (b) gasoline burns (c) steam condenses (d) reactants products, H = 50 kJ
Consider the following reaction in a vessel with a movable piston. R(g)+T(g)X(g)As the reaction takes place, the piston loses 1072 J of heat. The piston moves down and the surroundings do 549 J of work on the system. What is E?
Consider the following reaction in the vessel described in Question 57. A(g)+B(g)C(s)For this reaction, E=286 J, the piston moves up and the system absorbs 388 J of heat from its surroundings. (a) Is work done by the system? (b) How much work?
How much heat is absorbed by a 44.7-g piece of leadwhen its temperature increases by 65.4°C?

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry In Focus

Chemistry

ISBN:

9781337399692

Author:

Tro, Nivaldo J.

Publisher:

Cengage Learning,

Chemistry: Principles and Practice

Chemistry

ISBN:

9780534420123

Author:

Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:

Cengage Learning

World of Chemistry

Chemistry

ISBN:

9780618562763

Author:

Steven S. Zumdahl

Publisher:

Houghton Mifflin College Div

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

Chemistry In Focus

Chemistry

ISBN:

9781337399692

Author:

Tro, Nivaldo J.

Publisher:

Cengage Learning,

Chemistry: Principles and Practice

Chemistry

ISBN:

9780534420123

Author:

Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:

Cengage Learning

World of Chemistry

Chemistry

ISBN:

9780618562763

Author:

Steven S. Zumdahl

Publisher:

Houghton Mifflin College Div

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Chemistry: Principles and Reactions

Chemistry

ISBN:

9781305079373

Author:

William L. Masterton, Cecile N. Hurley

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS