Concept explainers
Interpretation:
The amount of energy required to vaporize 15.8 g N2 at its boiling point needs to be calculated.
Concept Introduction:
The latent heat of vaporization is defined as the amount of heat required to vaporize 1 g of the substance. The unit is in J/g. For nitrogen gas, the heat of vaporization at its boiling point is 198 J/g.
Thus, the amount of heat required to vaporize 1 g of the nitrogen gas is 198 J.
It is mathematically represented as follows:
Here, m is mass of nitrogen gas and L is latent heat of vaporization.
Answer to Problem 10.53FU
Explanation of Solution
The mass of the nitrogen gas is 15.8 g.
The amount of heat required to vaporize 1 g of the nitrogen gas is 198 J. This is the latent heat of vaporization.
Thus, at the boiling point, the heat required to vaporize 15.8 g of the nitrogen gas can be calculated as follows:
Putting the values,
Therefore, the amount of heat required is
Therefore, the amount of heat required is
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