Question

1. A thermodynamic cycle is a set of steps that returns the system to the same state that it started from (see, for example, pages 118 and following in the text). For each of the following quantities, circle or highlight the correct phrase to indicate whether the quantity will always sum to zero when all steps of a thermodynamic cycle are included, or whether there may be situations where it doesn't sum to zero.

a) q, heat                                             Always sums to zero              Does not always sum to zero

b) dq_rev/T                                             Always sums to zero              Does not always sum to zero

c) w, work                                           Always sums to zero              Does not always sum to zero

d) ∆U                                                  Always sums to zero              Does not always sum to zero

e) -pdV                                                            Always sums to zero              Does not always sum to zero

f) ∆H                                                   Always sums to zero              Does not always sum to zero

g) ∆G                                                   Always sums to zero              Does not always sum to zero

Answer 1

Answer: According to the question , here for the cyclic thermodynamic process

A] q, heat is  Does not always sum to zero

b] dqrev/T    Does not always sum to zero

c] w, work for cyclic process , Always sums to zero

d] ∆U for cyclic process ∆U does not Always sums to zero

e]  -pdV   Always sums to zero for cyclic process

f] ∆H   Does not always sum to zero

g] ∆G   Does not always sum to zero

Hence it is all about the given question , thank you :)