Question

Entropy as a state function. give your answers interns of V, P, R, and n.

a. suppose that n moles of an ideal gas expands in a quasi-static adiabatic process from P1=P and V1=v to V2=8V. what is the change in pressure of the gas

b. what are the initial and final temperature of the gas

c. consider a process at constant volume that brings the system to temperature T2 which you found in part b. what is the change in entropy of this process

d. next(following the constant volume process of part c) increase the volume at constant temperature T2. what is the change in entropy in this isothermal process

e. what is the total change in entropy from parts c and d

f. what is the change in entropy for part a

g. compare parts e and f. do their answers make sense

Answer 1

Change of entropy of a gas