How much energy is released to the environment by 50.0 grams of condensing water vapor? Hv = 40.7 kJ/mol

Answer 1

Hi @Diego, the answer to your question is 153.7kJ.

Answer 2

nope! Units are not consistent.
mols H2O = 50/18 = 1.83
Then

Answer 3

oops.Hit the wrong button.
moles H2O = grams/molar mass = 50 g/18 g/mol = 2.78
Then q = mass x delta H = 2.78 mols x 40.7 kJ/mol = 113 kJ