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QNEET-2019-Ch-756: NEET 2019 Chemistry - Class 11 NEET-2019-Ch-756 Solution: Under isothermal condition a gas at 300 K expands from 0.1 L to …
Under isothermal condition a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is [Given that 1 L bar = 100 J] 25 J 30 J -30 J 5 kJ
Multiple Choice Options
- A 25 J
- B 30 J
- C -30 J
- D 5 kJ
Step-by-Step Verified Solution
W = �P ext (V 2 �V 1 )
P ext = 2 bar
V 1 = 0.1 L
V 2 = 0.25 L
W = �2 bar[0.25 � 0.1] L
W = �2 _ 0.15 bar L
W = �0.30 bar L
W = (�0.30) _ 100 = �30 J