Question #6772

Calculate q, w, delta E and delta H for the process in which 2.0 moles of N2O gas are cooled from 165 degrees Celsius to 55 degrees Celsius at a constant pressure of 5 atm.

Expert's answer

delta E=0

delta H = C_{p} delta T

delta U = C_{v} delta T + p delta V

q = delta H

w = p delta V

delta U = dq + dw

w = -p deltaV = -R delta T = 8.31*(165 - 55) = 872.55 kJ

delta H = C

delta U = C

q = delta H

w = p delta V

delta U = dq + dw

w = -p deltaV = -R delta T = 8.31*(165 - 55) = 872.55 kJ

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