Work done in expansion of an ideal gas from `4` litre to `6` litre against a constant external pressure of `2.1 atm` was used to heat up `1` mole of water at `293 K`. If specific heat of water is `4.2 J g^(-1)K^(-1)`, what is the final temperature of water?

Work done in expansion of an ideal gas from `4` litre to `6` litre aga

1.	Work done in expansion of an ideal gas from `4` litre to `6` litre against a constant external pressure of `2.1 atm` was used to heat up `1` mole of water at `293 K`. If specific heat of water is `4.2 J g^(-1)K^(-1)`, what is the final temperature of water?
Answer» `W-2.1[6-4]=-2.1xx2` `= -4.2 atmxxlit` `= -4.2xx101.325J` This work is used to heat up the water specific heat of `H_(2)O=4.2(J)/("gram".K)` Heat required for increasing temperature by `1^(@)C` of `1 "mole"=4.2xx18=75.6 J` `4.2xx101.325=75.6[T-293]` `5.63=T-293` `T=298.63K`

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Work done in expansion of an ideal gas from `4` litre to `6` litre against a constant external pressure of `2.1 atm` was used to heat up `1` mole of water at `293 K`. If specific heat of water is `4.2 J g^(-1)K^(-1)`, what is the final temperature of water?

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