Methanol has a ΔHvap = 35.3 kJ/mol

CH3OH. Calculate the change in heat, q, when
50.0 g methanol condenses? Caution! Is q + or -?

1 answer

it releases heat when it condenses.

a. calculate the moles in 50g.
moles= 50/molmass
calculate the molmass of methanol.

b. heat= moles*(-Hevap)