Verified Solution • 2025–26 Session
moderate
QJEEM19Ch47c9: JEE Main 2019 Chemistry - Class 11 JEEM19Ch47c9 Solution: An ideal gas is allowed to expand form 1 L to 10 L against a…
An ideal gas is allowed to expand form 1 L to 10 L against a constant external pressure of I bar. The work done in kJ is :
Multiple Choice Options
- A 10
- B –0.9
- C – 2.0
- D – 9.0
Step-by-Step Verified Solution
This is an irreverseable process as gas is expanding against a constant external process.
Work done in irreverseable process
W = - Pext V
= - 1 bar 9 L
= - 105 Pa 9 10-3 m3
= - 9 102 N-m
= - 900 J
= - 0.9 kJ
Work done in irreverseable process
W = - Pext V
= - 1 bar 9 L
= - 105 Pa 9 10-3 m3
= - 9 102 N-m
= - 900 J
= - 0.9 kJ