3. Given the following data: C.H2 + 5/202 → 2CO2 + H20 C+O2 > CO: Ha + 1/20: > H20 AH = -1300kJ AH = -394 kJ AH = -286 kJ Calculate AH for the following reaction: 2C+ H2 CH2 How much heat will be transferred if 28 grams of carbon are reacted with 10 grams of hydrogen? 2CO2 + H20 → 5/202 + CaH2 AH=-(-1300 kJ) = 1300 kJ 2C + 20: → 20O2 AH = 2 (-394 kJ) = -788 kJ H2 + 1/20: > H20 AH = -286 kJ

3. Given the following data: C.H2 + 5/202 → 2CO2 + H20 C+O2 > CO: Ha + 1/20: > H20 AH = -1300kJ AH = -394 kJ AH = -286 kJ Calculate AH for the following reaction: 2C+ H2 CH2 How much heat will be transferred if 28 grams of carbon are reacted with 10 grams of hydrogen? 2CO2 + H20 → 5/202 + CaH2 AH=-(-1300 kJ) = 1300 kJ 2C + 20: → 20O2 AH = 2 (-394 kJ) = -788 kJ H2 + 1/20: > H20 AH = -286 kJ

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter12: Thermodynamic Processes And Thermochemistry

Section: Chapter Questions

Problem 14P

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