Answered: Carry out the following conversions of…

Carry out the following conversions of energy units: a. 20.7 Btu into calories cal b. 2.1 x 10° cal into joules J c. 24.2 mJ into Btu Btu

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter9: Energy And Chemistry

Section: Chapter Questions

Problem 9.15PAE: 9.15 Carry out the following conversions of energy units: (a) 14.3 Btu Into calories, (b) 1.4105 cal...

See similar textbooks

Related questions

Q: ever camperature 24.7 °C Fuel Gasoline Mass 18 28 Replay 38 Calculate the amount of heat released…

A: The Answer to the following question is-

Q: Carry out the following conversions of energy units: a. 26.8 Btu into calories cal b. 2.2 x 105 cal…

A: We have to do the following unit conversions.

Q: 11. An electric motor produces energy to turn a fan blade. The energy used to turn the fan blade is…

A: Answer

Q: The following thermochemical equation is for the reaction of hydrogen bromide(g) to form hydrogen(g)…

A: The given reaction: 2HBr(g) --> H2(g) + Br2(l) : H=72.6 kJ According to the reaction, 72.6 kJ…

Q: form dinitrogen monoxide(g) and water(g). NH4NO3(s) N2O(g) + 2H2O(g) H = -35.9 kJ How…

A: First we will calculate the number of moles of NH4NO3 required to produce 7.18 KJ of energy using…

Q: 10) You and your lab partner perform a calorimetry experiment in lab to determine the number of…

A: The total heat consumed by the calorimeter to raise the temperature from 26.2 oC to 31.4 oC of 100…

Q: 5.11 (a) Calculate the kinetic energy in joules of a 45-g golf ball moving at 61 m/s. (b) Convert…

A: Kinetic energy : It is the energy possessed by an object due to its motion. K.E. = 1/2 mv2 Where, m…

Q: A reaction generates 32,500 J of energy. How many calories were generated? Remember, 4.184 J = 1 cal

A: Given 4.184J = 1cal

Q: A 42.7 g sample of a metal is heated to 95.5°C and then placed in a calorimeter containing 120.0 g…

A: Metal and water are in thermal equilbrium at this condition Loss of heat by the metal = Gain…

Q: Given the following thermochemical equations, Equation 1: 4B(s) + 302(g) – 2B203(s) Equation 2: H2…

Q: The following thermochemical equation is for the reaction of ammonium chloride(s) to form ammonia(g)…

A: Solution :-Ammonium chloride decomposes to give ammonia andhydrogen chloride.i.e. NH4Cl(s) →…

Q: 19. Boiling water on the stove for cooking can be classified as a(n) process. - O endothermic…

A: If ∆H>0, then that will be an endothermic process. If ∆H<0, then that will be an exothermic…

Q: %3D 13) Consider the reaction, C2H4(g) + H2(g) → C2H6(g), where AH = -137 kJ. How many kilojoules…

A: C2H4 (g) + H2 (g) → C2H6 (g) ; ΔH = -137 kJ Given that,mass of C2H4 reacted = 55.3 g molar…

Q: The value of for the reaction below is -72 kJ. When one mole of HBr is formed in this reaction, the…

Q: What amount of energy is released (in the form of heat) when 60.0g of 1-pentanol reacts with oxygen?…

A: We will calculate heat released from 2 mol of pentanol, then calculate heat released from 60 g of…

Q: Whenever energy is transformed from one form to another, some of the energy is always converted into…

A: Whenever transformation of energy takes place then some of the energy is always get lost.We call…

Q: The following thermochemical equation is for the reaction of ammonium nitrate(s) to form N2O(g) and…

A: The thermodynamic equation in which ammonium nitrate dissociates to form N2O(g) and water is shown…

Q: Is the reaction exothermic or endothermic? O exothermic endothermic up Does the temperature of the…

Q: A chemist measures the energy change AH during the following reaction: CH,(9)+20,(9) →…

Q: When 2 moles of NO(g) react with O2(g) to form NO2(g) according to the following equation, 114 kJ of…

A: When energy is evolved during reaction reaction is exothermic and when energy is absorbed during a…

Q: What quantity of energy is needed to heat a 1.00 mole sample of H2O ‍ from -30.0 degrees C to 140.0…

A: Since in heating H2O ‍from -30 0C to 140 0C following steps will happen 1) Heating of ice from -30…

Q: When CO(g) reacts with 02(g) according to the following reaction, 283 kJ of energy are evolved for…

A: We need to write value of ∆H , for this we need to check sign and total energy.

Q: A 20.0 g sample of graphite is cooled to 0.0°C. In the process 280 J of energy is released from the…

A: Given the mass of sample =20.0 gramfinal temperature =0.0 °Cenergy released =280 J ( it is taken as…

Q: A 1.61−g peanut is burned in a bomb calorimeter containing 1,000 g of water. The temperature of the…

A: Heat given = heat taken Heat absorbed by water (Q) = m . s . (T2-T1) Given that: m = mass of water =…

Q: Whenever energy is transformed from one form to another, some of the energy is always converted into…

A: Energy is neither created nor destroyed it is transformed.However this transformation process is not…

Q: A chemist measures the energy change AH during the following reaction: 2 H,0(1) → 2 H,(g)+O,(g)…

A: Given;

Q: Your body transforms the from your food into the used for movement. O a Thermal Energy, Radiant…

A: Hence the answer is option no .d Chemical Energy, Kinetic Energy

Q: 0.557 grams of a particular gunpowder will propel a 40-caliber bullet with 526 ft lbs of energy when…

A: The capacity of doing the work is called energy. Kinetic energy and potential energy are two types…

Q: Consider the following thermochemical reaction for kerosene: 2 C12H26 (1) + 37 O2 (g) 24 CO2 (g) +…

A: The given balanced chemical equation is: 2 C12H26 (l) + 37 O2 (g)→ 24 CO2 (g) + 26 H2O (l)…

Q: Thermochemistry is the study of how is produced and consumed during chemical reactions. Select one:…

A: The given statement has to be filled with a correct and matched one.

Q: The following thermochemical equation is for the reaction of nitrogen(g) with hydrogen(g) to form…

A: there are two kinds of property extensive property which depend on the number of particle and…

Q: 20) Using the following equation for the combustion of octane, caleulate the heat asociated with the…

Q: NO + O O NOle) Given the following information: As part of your answer, show how the equations can…

A: NO(g) + O(g) ---> NO2(g)

Q: 9.38 The energy densities of various types of coal are listed below. Anthracite 35 kJ/g Bituminous…

A: Given: The energy density of Anthracite= 35kJ/g The energy density of Subbituminous= 31 kJ/g The…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ Reaction 2:…

Q: The complete combustion of propane gas can be represented as a. 2 C3H8 + 7 O2→ 2 C + 2 CO2 + 8 H2O +…

A: Correct choice is option (C) Pls use 5O2 instead of 10O2 because total Of atom is 10 in the product…

Q: 24. Consider the following thermochemical equation sometimes used for H2S production: S8(s) + 8…

A: The given reaction is : S8(s) + 8H2(g) = 8H2S(g) ∆Hrxn = -20.2 kJ From the reaction it is clear…

Q: Consider the reaction, C2H4(g) + H2(g) → C2H6(g), where ΔH = –137 kJ. How many kilojoules are…

A: Answer:- This question is answered by using the simple concept of stoichiometry of the…

Q: The common fertilizer NH,NO;(s), can explosively decompose according to the following reaction. What…

A: Mass of NH4NO3 = 80.06 g

Q: Use the information in the table to determine AH for the reaction represented by the equation 2Cu +…

A: For the equation: 2Cu + S → Cu2S ΔHof (Cu2S)=-79.5 kJ/mol ΔHof (Cu)=0 ΔHof (S)=0

Q: 20) Given the following thermochemical equations, 4NH3(g) + 7O2(g) → 4NO2(g) + 6H2O(g)…

A: To solve this problem we will use the given thermochemical equations .

Q: Given the data in the table below, AH° ryn for the reaction 3NO2 (g) + H20 (1) → 2HNO3 (aq) + NO (g)…

A: Given chemical reaction, 3 NO2 (g) + H2O (l) → 2 HNO3 (aq) + NO (g) The value of ∆Horxn can be…

Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with oxygen(g) to…

Q: When 1 mole of HCl(g) reacts with NH3(g) to form NH4Cl(s) according to the following equation, 176…

A: Given : Amount of heat evolved in the reaction = 176 KJ And moles of HCl reacted = 1 mol

Q: What is the calorimeter constant (J/°C)f qice = 7269.11J, volume of water = 100.0 mL, initial…

A: We have to predict the calorimeter constant

Q: Consider the reaction:B2H6(g) + 3O2(g) --> B2O3(s) + 3H2O(g) ΔH = -2035 kJCalculate the amount of…

A: Standard enthalpy change for given equation is -2035kJ recorded is shown above. Calculate amount of…

Q: The following thermochemical equation is for the reaction of hydrogen chloride(g) with oxygen(g) to…

A: Given, the thermochemical equation for the reaction of hydrogen chloride(g) with oxygen(g) to form…

Q: Consider the following reaction. N2 + 3 H2 -> 2 NH3 ΔH = -92 kJ/mol How many grams of…

A: in the given reaction its clear that when 1 mole of N2 reaction there is release of 92 kJ energy.…

Q: A chemist measures the energy change AH during the following reaction: 2 NO,(9) → N,O4(9) AH=-55.3…

A: Given 2NO2 (g) →N2O4 (g) ΔH = -55.3 kJ

Q: A 0.692 g sample of glucose (C6H1206) is burned in a bomb calorimeter. The temperature of 575g of…

Question

Carry out the following conversions of energy units:
a. 20.7 Btu into calories
|cal
b. 2.1 x 10° cal into joules
J
c. 24.2 mJ into Btu
Btu

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 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

Use the same fat described in Question 27. (a) Write a thermochemical equation for the metabolism of fat. (b) A dieter reduces his food intake by 425 nutritional calories a day (1 nutritional calorie=1000calories). How many kJ can he lose in one day? (c) How many pounds of fat are lost in one week with this diet?
A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/C g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/C g) are heated to 100.0C. The mixture of hot iron and aluminum is then dropped into 97.3 g water at 22.0C. Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.
Define the terms system and surroundings. What does it mean to say that a system and its surroundings are in thermal equilibrium?
Explain in your own words what is meant by the term entropy. Explain how both matter spread and energy spread are related to the concept of entropy.
9.104 An engineer is using sodium metal as a cooling agent in a design because it has useful thermal properties. Looting up the heat capacity, the engineer finds a value of 28.2 J mol-l °C-l. Carelessly, he wrote this number down without units. As a result, it was later taken as specific heat. (a) What would he the difference between these two values? (b) Would the engineer overestimate the ability of sodium to remove heat from the system or underestimate it because of this error? Be sure to explain your reasoning.
9.15 Carry out the following conversions of energy units: (a) 14.3 Btu Into calories, (b) 1.4105 cal into joules, (c) 31.6 mJ into Btu
Calculate H for the reaction 2K(s)+2H2O(l)2KOH(aq)+H2(g) A 5.00-g chunk of potassium is dropped into 1.00 kg water at 24.0c. What is the final temperature of the water after the preceding reaction occurs? Assume that all the heat is used to raise the temperature of the water. (Never run this reaction. It is very dangerous; it bursts into flame!)
9.38 The energy densities of various types of coal are listed below: Anthracite 35 kJ/g Subbituminous 31 kJ/g Bituminous 28 kJ/g Lignite 26 kJ/g An unknown sample of one of these coals is burned in an apparatus with a calorimeter constant of 1.3 kJ/°C. When a 0.367-g sample is used, the temperature change is 8.75°C. Which type of coal is the sample?
A sample of 0.562 g of carbon is burned in oxygen in a bomb calorimeter, producing carbon dioxide. Assume both the reactants and products are under standard state conditions, and that the heat released is directly proportional to the enthalpy of combustion of graphite. The temperature of the calorimeter increases from 26.74 C to 27.93 C. What is the heat capacity of the calorimeter and its contents?
A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g water at 23.5C. After the metal cools, the final temperature of metal and water mixture is 25.0C. If the specific heat capacity of nickel is 0.444 J/C g, what mass of nickel was originally heated? Assume no heat loss to the surroundings.
The overall reaction in a commercial heat pack can be represented as 4Fe(s)+3O2(g)2Fe2O3(s)H=1652KJ a. How much heat is released when 4.00 moles of iron are reacted with excess O2? b. How much heat is released when 1.00 mole of Fe2O3 is produced? c. How much heat is released when 1.00 g iron is reacted with excess O2? d. How much heat is released when 10.0 g Fe and 2.00 g O2 are reacted?