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 vessel contains 100 litres of a liquid x. Heat is suppllied to the l

1.	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,
Answer» `Delta U = 0, Delta H = 0` `Delta U = +202.6J, Delta H = +202.6 J` `Delta U = -202.6J, Delta H = - 202.6J` `Delta U = 0, Delta H = + 202.6J` Solution :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`