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A vertical cylinder with a massless piston filled with one mole of ideal gas.The piston can move freely wuthout friction.The piston is slowly raised so that gas expands isothermally at 300K.The amount of work done in increasing volume two times is? (R=25/3, ln2= 0.7)

A vertical cylinder with a massless piston filled with one mole of ideal gas.The piston can move freely wuthout friction.The piston is slowly raised so that gas expands isothermally at 300K.The amount of work done in increasing volume two times is?
(R=25/3, ln2= 0.7)

Grade:12th pass

1 Answers

Pranav Dabhade
34 Points
7 years ago
For isothermal process,
work done= nRT ln(V2/V1) 
                    =(1)(25/3) (300) (ln 2)             (since V2=2V1)
                    =(1) (25/3) (300) (0.7)
                    =1750 Joule.

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