Thermodynamics Question 220
Question: One mole of an ideal gas expands at a constant temperature of 300 K from an initial volume of 10 litres to a final volume of 20 litres. The work done in expanding the gas is (R = 8.31 J/mole-K)
[MP PMT 1995; UPSEAT 2000]
Options:
A) 750 joules
B) 1728 joules
C) 1500 joules
D) 3456 joules
Show Answer
Answer:
Correct Answer: B
Solution:
$ W _{iso}=\mu RT{\log _{e}}\frac{V _{2}}{V _{1}}=1\times 8.31\times 300{\log _{e}}\frac{20}{10}=1728J $
