Question
Question: A gas is expanded to double its volume by two different processes. One is isobaric and the other is ...
A gas is expanded to double its volume by two different processes. One is isobaric and the other is isothermal. Let W1 and W2 be the respective work done, then –
A
W2 = W1ln (2)
B
W2 = racW1extln(2)
C
W2 = racW12
D
Data is insufficient
Answer
W2 = W1ln (2)
Explanation
Solution
W1 = P1 (V2 – V1) = P (2V – V) = PV
W2 = PV ln22V
W2W1= ln21Ž W2 = W1 ln2