Biology Forums - Study Force

Liquid ammonia can be used as a refrigerant and heat transfer fluid. How much energy is required to heat 25.0 g of NH₃( l) from  –65.0°C to  –12.0°C?

Normal boiling point	–33.4°C
Specific heat of NH3( l)	4.7 J/g •°C
Specific heat of NH3( g)	2.2 J/g •°C
Molar heat of vaporization	23.5 kJ/mol

▸ 4.92 kJ

▸ 16.0 kJ

▸ 34.5kJ

▸ 39.4 kJ

▸ 182.8kJ

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