Jania.20 Chapter 3 3.100 When 1.0 9 of gasoline burns, it releases gasoline 0.749/ML SI (3.4.3.6) A) HOw many megajoules arc released srs 1.0 gai ot gasoline burns? When

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HCI(g) AH = -184.6 kJ %3D Reaction 2: 20F2…

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Q: ample of unknown material at ed in a calorimeter containing t 19.0 °C. The final temperatu nation is…

A: Given, Mass of water = 95.0 g Intial Temperature = 19 °c Final Temperature = 23.8 °c Heat capacity…

Q: b A uranium-235 nucleus decays by x 101 Chem101 + Enthalpy - Chemistry - OpenStax X app.101edu.co…

A: The heat capacity, c of substance is given as :

Q: What is the energy change when the temperature of 12.3 grams of gaseous helium is decreased from…

A: Given: Mass of He = 12.3 g. The initial temperature of He = 37.7 oC And the final temperature of He…

Q: What do we know about AS.ys , ASsur , and ASuniv if during an exothermic chemical reaction, four…

A: It is given that four moles of gaseous reactants are turned into two moles of gaseous products and…

Q: ducation.com/flow/connect.html (Thermochemistry: Energy FL.. i Saved 2 attempts left Check my work…

A: Volume of isooctane (in Litres) is calculated as follows, Mass of isooctane is calculated as…

Q: amount of energy required or released in the formation reaction for 15 moles of gaseous HI. Express…

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Q: Given the following reaction 2Na2S + __Na2CO3 + __SO2(g) __Na2S2O3 + CO2(g) DH =-1025kJ a.…

A: #(a):  We can find density of CO2(g) using ideal gas equation.  Given temperature, T = 20.0 oC +…

Q: Acetylene burns in air according to the following equation:C₂H₂(g)+5/2O₂(g)→2CO₂(g)+H₂O(g) ΔH°ᵣₓₙ…

A: When a chemical reaction takes place, some bonds are formed and some bonds are broken. This change…

Q: Rubidium has an atomic weight of 85.470 and two primary isotopes. The isotopes are rubidium-85…

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Q: What is the kinetic energy in kilojoules of a space station weighing 8073 kg and moving at a…

A: Given that   Mass = 8073kg Velocity = 2.684 × 10^4

Q: tổ förm calcium oxide and carbon dioxide(g). CACO3(s)→ CaO(s) + CO2(g) ΔΗ-178 kJ How many grams of…

A: We will use unitary method to get the answer

Q: It's what makes food taste so good. Lipids or fats are relatively large molecules that pack a…

A: Hi, since there are multiple questions posted we will provide you with answers for the first…

Q: Enter your answer in the provided box. Acetylene burns in air according to the following equation:…

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Q: 5.45 State Hess’s law. Explain, with one example, theusefulness of Hess’s law in thermochemistry.

A: ANSWER IS DISCUSSED BELOW :

Q: Small amounts of oxygen gas can be prepared in the laboratory by decomposing potassium chlorate with…

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Q: E Question Completion Status: What is AH° (in kilojoules) for the reaction below? rxn CH 4(g) + 4…

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Q: Duncan takes a break from studying and goes to the gym to swim laps. If swimming burns 8.45×105…

A: First of all you need to know the relation between calorie and joule to find this conversion value.…

Q: A 0.0647−mol sample of a nutrient substance, with a formula weight of 114 g/mol, is burned in a bomb…

A: Given: moles of sample = 0.0647 mol molar mass of sample = 114 g/mol mass of sample = 0.0647×114 =…

Q: A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2…

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Q: What is the energy change when the temperature of 13.6 grams of gaseous neon is decreased from 35.9…

A: We have to calculate the energy change.

Q: Using the information in the table below, calculate the heat of released from the following reaction…

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Q: What is the energy change when the temperature of 11.6 grams of gaseous helium is decreased from…

A:

Q: What is the energy change when the temperature of 14.2 grams of gaseous oxygen is decreased from…

A: Given: Mass of oxygen = 14.2 g Initial temperature = 37.2 oC Final temperature = 22.2 oC Molar mass…

Q: What is the energy change when the temperature of 14.4 grams of solid iron is decreased from 38.2 °C…

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Q: What is the energy change when the temperature of 10.6 grams of gaseous nitrogen is decreased from…

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Q: Use the set of three reactions shown below to answer the questions that follow. 2NO2(g) 2NO (g)O2(g)…

A: Let ‘x’ be the amount of heat released by 50.3g of NO.

Q: In an experiment, a 0.4486 g sample of 1,9-nonanediol (C9H20O2) is burned completely in a bomb…

A:

Q: Question # 8

A: The given reaction represents an exothermic reaction.  so the enthalpy of product is less than the…

Q: 4. Acetylene burns in air by the following equation: kJ 2 C2H2(g) + 5 02(g) → 4 CO2(g) + 2 H20(g) +…

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Q: Ammonia will react with fluorine in the gaseous state to produce dinitrogen tetrafluoride and…

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Q: A coffee-cup calorimeter contains 50.0 mL of distilled water at 22.7 °C. Solid ammonium bromide…

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Q: 19. A 70.4-L sample of a gaseous hydrocarbon, measured at 1.00 atm pressure and 25.0°C, is burned in…

A: Given: Volume V = 70.4 L pressure = 1 atm temperature = 298 K number of mole = ?   formula used : PV…

Q: 22. How many Pop TartsM are needed to convert 1,000.0 g of water at 20.0°C to 100.0°C? One Pop Tart™…

A: Given : Mass of water = 1000g

Q: What is the energy change when the temperature of 14.2 grams of gaseous oxygen is decreased from…

A: Answer: In this question we have to calculate the change in internal energy of the gas keeping in…

Q: PV= 0.272 Review I Constacts Piodc Table Used in wolding metals, the reaction of acetylene with…

A: The given reaction is, C2H2(g) + 5/2O2(g) ---> H2O(g) + 2CO2(g)   Now, the work done is, W = P∆V…

Q: When one pound of propane is combusted, 22.8 MJ of energy are released. Determine the mass of…

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Q: How much energy is required to raise the temperature of 10.6 grams of solid gold from 23.4 °C to…

A: Mass of solid gold = 10.6 grams  Initial temperature = 23.4 °C  Final temperature = 37.3 °C  Energy…

Q: A cashew is burned in a soda can calorimeter, and heats up 0.245 kg of water by 3.65 °C. The…

A: Solution - According to the question - Given - Relation :-  Q-> Heat in calorie m-> mass (in…

Q: I0I Chem 101 app. 101edu.co Question 16 of 18 A sample of 3.05 g of banana was burned in a coffee…

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Q: How much energy is required to raise the temperature of 10.6 grams of solid copper from 23.7 °C to…

A: The energy required is determined by using Q = m c deltaT.

Q: When one pound of propane is combusted, 22.8 MJ of energy are released. Determine the mass of…

A: Given, Combustion of one pound of propane produce 22.8 MJ of energy Amount of energy = 523 KJ…

Q: DHvap = 31.3 kJ/mol for acetone. If 1.40 kg of water were vaporized to steam in a boiler, how much…

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Q: What is the energy change when the temperature of 14.9 grams of gaseous helium is decreased from…

A: Given, amount of helium =14.9 gramchange in temperature ∆T =36.2°C-21.3 °C =14.9°C =(14.9+273.15)…

Q: A cashew is burned in a soda can calorimeter, and heats up 0.245 kg of water by 3.65 °C. The…

A: To calculate mass of fat contained in cashew , we would first Calculate heat given up by burning a…

Q: A cashew is burned in a soda can calorimeter, and heats up 0.245 kg of water by 3.65 °C. The…

A: The mass of water in the calorimeter is = 0.245 g An increase in the temperature of the water is =…

Q: Calculate the heat required when 2.50 mol of A reacts with excess B and A2B according to the…

A: Given : Reactions Moles of A = 2.50 mole  B is in excess To find : Heat required for 2.50 moles of A…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.