CH4 (9) + 20, (9) → CO2(9) + 2H,0(1) AH=-891 kJ a. Calculate the enthalpy change if 2.80 g methane is burned in excess oxygen. Enthalpy change = | kJ b. Calculate the enthalpy change if 5.65 x 10° L methane gas at 748 torr and 25°C is burned in excess oxygen. Enthalpy change = [ kJ

CH4 (9) + 20, (9) → CO2(9) + 2H,0(1) AH=-891 kJ a. Calculate the enthalpy change if 2.80 g methane is burned in excess oxygen. Enthalpy change = | kJ b. Calculate the enthalpy change if 5.65 x 10° L methane gas at 748 torr and 25°C is burned in excess oxygen. Enthalpy change = [ kJ

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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Question

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Consider the following reaction:
CH4 (9) + 20, (9) → CO2 (g) + 2H, O(1)
AH=-891 kJ
a. Calculate the enthalpy change if 2.80 g methane is burned in excess oxygen.
Enthalpy change = |
kJ
b. Calculate the enthalpy change if 5.65 x 10° L methane gas at 748 torr and 25°C is burned in excess oxygen.
Enthalpy change =
kJ

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