[aria152]

Here is what the question says:
Liquid water is vaporized at 100 degrees centigrade and 1.013 bar. The heat of vaporization is 40.69 kJ/mol. what are the values of Wrev per mole, delta U, delta H and q per mole.

As can be seen, it is an endothermic process so delta H = +40.69 kJ/mol

but where do i go with this ?? I am confused. 'coz it doesn't say anything about the initial and final volmes at all. I can calculate delta T using delta H = Cp. delta T but i don't see how that's going to help



What should I do ??

[GCT]

it's done under constant pressure, the heat of vaporization is equal to delta H, being q.  Other hints, the temperature is the same