# Answer to Question #6772 in Physical Chemistry for Aman

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

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

delta H = C

_{p}delta Tdelta U = C

_{v}delta T + p delta Vq = 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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