What is the enthalpy of combustion of ethane, C,H,, in kilojoules per mole of ethane? STRATEGY 1. Write the balanced chemical equation for the reaction. 2. Using the coefficients from the balanced equation, calculate AHn. 3. Scale the heat of reaction to be per mole of ethane. 4. Convert the heat released from kilojoules per mole to kilojoules per gram. Steps 1 and 2: The balanced chemical equation and AHn are given here. 2C,H,(g) + 70,(g) 4 CO,(g) + 6 H,O(1) = -3120.8 kJ Step 3: This amount of heat, 3120.8 kJ, is released per 2 mol of ethane according to the balanced chemical equation. How much heat is released when just one mole of ethane is burned? heat released: kJ C,H, mol

What is the enthalpy of combustion of ethane, C,H,, in kilojoules per mole of ethane? STRATEGY 1. Write the balanced chemical equation for the reaction. 2. Using the coefficients from the balanced equation, calculate AHn. 3. Scale the heat of reaction to be per mole of ethane. 4. Convert the heat released from kilojoules per mole to kilojoules per gram. Steps 1 and 2: The balanced chemical equation and AHn are given here. 2C,H,(g) + 70,(g) 4 CO,(g) + 6 H,O(1) = -3120.8 kJ Step 3: This amount of heat, 3120.8 kJ, is released per 2 mol of ethane according to the balanced chemical equation. How much heat is released when just one mole of ethane is burned? heat released: kJ C,H, mol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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