PracticeEx1

# PracticeEx1 - Practice Exam 1 R = 8.314 J(K mol 1 atm =...

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Practice Exam 1 R = 8.314 J/(K mol) , 1 atm = 101325 Pa, 1 L =10 -3 m 3 , 0 ° C = 273.15 K 1 . True/False. Classify the statements below as either True or False (No explanation required). (a) Thermodynamics can be applied to any system irrespective of the number of particles in the system. (b) The enthalpy change of a gas is equivalent to the heat transferred to the gas in an isobaric process (i.e. pressure is fixed). (c) System does minimum work on the surrounding in the reversible process. (d) dT C dU V = is true for ideal gases. (e) In a spontaneous process, the entropy of a system always increases. (f) The entropy of the surrounding increases more in the irreversible process than the reversible one. Assume that the initial states of the system in both processes are the same and so are the final states. 2. Calculate the work done on the ideal gas ( w ) for the following processes in Joules (J). Also specify the sign of the work ( w ). The temperature is fixed at 25 ° C during the processes

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## This note was uploaded on 09/25/2011 for the course CH 353M taught by Professor Lim during the Fall '08 term at University of Texas.

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PracticeEx1 - Practice Exam 1 R = 8.314 J(K mol 1 atm =...

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