How much heat is needed to condense 22.25 grams of nitrogen gas at –195.8°C? The latent heat of vaporization of nitrogen is 199.0 J/g.
The correct answer to the question is : 4427.75 J.
EXPLANATION :
As per the question, the mass of the nitrogen gas m = 22.25 gram.
The latent heat of vaporization of nitrogen \(L_{v} =199.0\ J/g\)
As per the question, the nitrogen gas will condense. During condensation, the nitrogen gas will lose or release heat equal to its latent heat.
Hence, the heat released by nitrogen gas Q = \(mL_{v}\)
= 22.25 × 199.0 J
= 4427.75 J.
Hence, the amount of heat released will be 4427.75 J.