Consider the combustion of propane: C3H8(g) + 5O2(g) -> 3CO2(g)+ 4H2O(l) ∆H=  -2221 kJ  Assume that all the heat in Example 6.3 comes from the com- bustion of propane. What mass of propane must be burned to  furnish this amount of energy assuming the heat transfer pro- cess is 60.% efficient? Heat from example 3 is 1.3×10^8J

Q: heat

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Q: How much heat is released by burning 32g of CH4? CH4(g) + 2O2 → CO2(g) + 2H2O(l)  ΔH=-891kJ

A: Given, CH4(g) + 2O2 → CO2(g) + 2H2O(l)   ΔH= -891kJ Note: (-) negative sign indicate the release of…

Q: thermochemical equations to determine the heat of formation of AH° = -395.4 kJ Cdiamond + O2(g) →…

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Q: One piece of copper jewelry at 105oC has twice the mass of another piece at 45oC. Both are placed in…

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Q: A quantity of 505 J of heat are added to 11.3 g of water at 28.3 °C. What is the final temperature…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: If 7.92x10^4 of heat are required to raise the temp of 220.3 g of a substance from 332K to 442K what…

A: Amount of heat = 7.92 × 104 Joule Mass of substance = 220.3 gram Initial Temperature, T1 = 332K…

Q: In the following reaction, what quantity in moles of CH₃OH are required to give off 2941 kJ of heat?…

A: Given, amount of heat given off = 2941 kJ From the balanced chemical equation we can see that 2…

Q: Methanol is an attractive fuel source in a sustainable, green economy. The chemical energy inherent…

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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: The condition where a system that is doing work (w) on the surroundings while gaining heat (q) from…

A: Explanation to the correct answer is given below

Q: A student mixes 41.8 g of ethanol at 15.8°C with 50.7 g of water at 49.2°C. If the resulting…

A: To find the answer, just compare the heat that ethanol gains to the heat that water loses. Water…

Q: What is the change in enthalpy in kilojoules when 2.30 mol of Mg is completely reacted according to…

A: Given reaction is enthalpy of combustion reaction.  2Mg(s)+O2(g)=2Mgo(s), ∆H=-1204 KJ When whole…

Q: HCI gas reacts with oxygen according to the following thermochemical equation :…

A: The reaction equation is given as- 4 HCl (g)+O2 (g)→ 2 Cl2 (g) + 2 H2O (g)…

Q: Methanol, CH3OH, is a possible fuel for automobiles. Energy is evolved in its combustion with…

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Q: In the following reaction, what quantity in moles of CH₃OH are required to give off 6056 kJ of heat?…

A: Given thermochemical reaction equation is   2 CH₃OH (l) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O(g)  ∆H° =…

Q: A 27.24 g27.24 g sample of a substance is initially at 26.6 ∘C26.6 ∘C . After absorbing 496 cal496…

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Q: What is the maximum amount of heat (in kJ) that can be released when 27.2 g of hydrogen sulfide gas…

A: Given mass of H2S = 27.2 g molar mass of H2S = 34.1 g/mol

Q: A sample of aluminum with a mass of 53.4 g is initially at 156 ∘∘ What is the temperature of the…

A: Specific heat (C) :-  The amount of heat required to raise the temperature of 1 gram of a substance…

Q: You just determined that when 14 L of ethane (C2H6) and 14 L of oxygen (O2) combined and burned to…

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Q: A 1.211 g of benzoic acid (CH§ COOH) was ignited in pure oxygen gas and the heat released from the…

A: Here's a step-by-step explanation:1. **Understanding the System**: We have benzoic acid (C6H5COOH)…

Q: A 58-g copper calorimeter (sp. ht. = 0.093 cal / g.oC) contains 260 g of water at 20 oC. When 78 g…

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Q: Given the thermochemical equations X₂ + 3 Y₂ → 2XY, AH₁ = -330 kJ X₂ +2Z₂ → 2XZ₂ - AH₂ = -190 kJ…

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Q: Benzene (C6H6) undergoes combustion according to: 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)ΔHo=−6535kJ All…

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Q: The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation:…

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Q: 10. Given the following thermochemical equation, calculate the heat involved in decomposing 12.5 g…

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Q: 7.) Use the folowing themochemical equations as needed to find the heat of formation of diamond:…

A: Given equations are : 1). C (diamond) +  O2 (g)  --------> CO2 (g) , ΔH1 = -395.4 KJ  2). 2CO2…

Q: 9. What mass of natural gas (CH4) must burn to emit 3,447 kJ of heat? CH4 (g) + 202 (g) → CO2 (g) +…

A: The mass of CH4 can be calculated as follows

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Q: n heat would be released per gram of Al(s)?

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Q: Given the thermochemical equation, for octane, a major component of gasoline, burns according to the…

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Q: given the thermochemical equation:  CH4 (g) + 2 O2 (g) -> CO2 (g) + 2H2O (l)  H = -890kJ is this…

A: Exothermic reaction: A reaction which evolves heat is called exothermic reaction. In an exothermic…

Q: -1 1 A 28.0 g sample of brass, which has a specific heat capacity of 0.375 J.g .°℃ is dropped into…

A: The objective of this question is to calculate the equilibrium temperature of the water when a brass…

Q: 5. Ammonia reacts with oxygen acco 4 NH3(g) + 5 O2(g) → 4 NOC

A: According to the question, ammonia reacts with oxygen according to the equation: 4 NH3(g) + 5O2(g)…

Q: What mass of natural gas (CH4) must burn to emit 267KJ of heat? CH4 (g) + 2 O2 (g) -------> CO2…

A: Given, The mass of natural gas (CH4) must burn to emit 267KJ of heat is: CH4 (g) + 2 O2 (g)…

Q: Unit 10 Q#17 When a 25.0 g sample of ethyl alcohol is burned, how much energy is released as heat?…

A: Given: Mass of Ethyl alcohol = 25 g ∆Hrxn = -1.37 × 103 KJ/mol That means on burning 1 mole of…

Q: Hydrazine, N2H41), is used in rocket fuels. The thermochemical equation for the combustion of…

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Q: What is the final temperature (in K) of 2.630 g of water with an initial temperature of 293.2 K…

A: Given: The initial temperature of the water, (T1) = 293.2 K. The mass of water, (m) = 2.630 g The…

Q: How many moles of KClO₃solid must be reacted according tothe following balanced chemical reaction to…

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Q: What is the change in enthalpy for the reaction: 2 B (s) + 3H2(g) → B2H6 (g) given these…

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Q: You have a constant pressure calorimeter filled with 256.328 g of water at 21.3C. A 93.310g piece of…

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Q: Cyclohexanol C6H11OH is an organic compound that freezes at 26 degrees Celsius. How much energy is…

A: Given, Enthalpy of melting of cyclohexanol - 1.70 kJ/mol. Amount of cyclohexanol taken - 18.5 g…

Q: The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation:…

A: The thermochemical reaction isC3H8 (g) + 5O2 (g) ----> 3CO2 (g) + 4H2O (g), Heat of reaction = -…