This should be a rather easy question, but I am quite rusty in thermodynamics. so...

I need to find the work done during an isothermal reversible condensation of 1 mol of water at 373K.

I tried tried using w= -nRT ln(Vf/Vi) , but the answer I got is not correct.

n=1, R=8.314, T=373, Vf=0.000018m3, Vi=0.0224m3

Is this the equation I should be using? Are the values correct?

Thanks for your time.