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A vessel contains 100 litres of a liquid...

A vessel contains 100 litres of a liquid x. Heat is suppllied to the liquid in such a fashion that, Heat given = change in enthalpy. The volume of the liquid increases by 2 lites. If the external pressure is one atm and 202.6 Joules of heat were supplied then,

A

`Delta U = 0, Delta H = 0`

B

`Delta U = +202.6J, Delta H = +202.6 J`

C

`Delta U = -202.6J, Delta H = - 202.6J`

D

`Delta U = 0, Delta H = + 202.6J`

Text Solution

Verified by Experts

The correct Answer is:
D
from the data `Delta H= Q= 202.6J`
from first law of T. D `Delta U = Q + W`
`Delta U = 202.6 + (-P Delta V)`
`=202.6 + (-1(2) xx 101.3J) = 0`
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