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Internal Energy

Temperature o...

Question

Temperature of $1$ mole of a gas is increased by $2^{o} C$ at constant pressure, work done is:

A

R

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B

2 R

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C

R / 2

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D

3 R

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Solution

The correct option is C $2 R$
We know,

$W = - P Δ V = - n R △ T$

$W = - 1 m o l R J K^{- 1} m o l^{- 1} 2 K$

$W = - 2 R$ joules

Hence the correct option is [B].

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