Ammonia,NH₃,is Used as a Refrigerant $\circ$ C,the Standard Enthalpy of Vaporization of Ammonia Is 23

Multiple Choice

Ammonia,NH₃,is used as a refrigerant.At its boiling point of -33 ^$\circ$ C,the standard enthalpy of vaporization of ammonia is 23.3 kJ/mol.How much heat is released when 50.0 g of ammonia is condensed at -33 ^$\circ$ C?

A) -0.466 kJ
B) -7.94 kJ
C) -36.6 kJ
D) -68.4 kJ
E) -1.17 $\times$ 10³ kJ