Thermodynamics Question 315
Question: An ideal monoatomic gas is confined in a cylinder, fitted with piston, which is connected to spring . The gas is heated by a-small electric heater until the piston moves out slowly by 0.1 m. Find the work done by the gas. Spring constant = 8000 N/m,-piston area atmospheric pressure .
Options:
A) 40 J
B) 80 J
C) 120 J
D) 60 J
Show Answer
Answer:
Correct Answer: C
Solution:
[c]Work done
where p = pressure of gas,
atmospheric pressure k = spring constant