Question

What is the quantity of heat that is released when 27.9 g of H2O condenses? Use mc021-2.jpg. 60.00 kJ 61.05 kJ 63.09 kJ 68.60 kJ

Answer 1

hey there!:

Molar mass H2O = 18.02 g/mol

ΔH vap = 40.7 kj/mol

energy = ( mass ) / ( molar mas H2O ) * ΔH vap

energy = ( 27.9 / 18.02 ) * 40.7

energy = 1.54827 * 40.7

energy = 63.09 Kj

Answer C

hope this helps!