Liquid Ammonia (Boiling Point = -33

Liquid ammonia (boiling point = -33.4°C) can be used as a refrigerant and heat transfer fluid. How much energy is needed to heat 25.0 g of NH₃(l) from -65.0°C to -12.0°C?
Specific heat capacity, NH₃(l) : 4.7 J/(g·K)
Specific heat capacity, NH₃(g) : 2.2 J/(g·K)
Heat of vaporization: 23.5 kJ/mol
Molar mass, : 17.0 g/mol

A) 5.5 kJ
B) 6.3 kJ
C) 39 kJ
D) 340 kJ
E) 590 kJ

Correct Answer:

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