Basic Chemistry (5th Edition)
Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 10, Problem 10.53FU
Interpretation Introduction

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:

  Q=mL

Here, m is mass of nitrogen gas and L is latent heat of vaporization.

Expert Solution & Answer
Check Mark

Answer to Problem 10.53FU

  3128.4 J

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:

  Q=mL

Putting the values,

  Q=(15.8 g)(198 J/g)=3128.4 J

Therefore, the amount of heat required is 3128.4 J .

Conclusion

Therefore, the amount of heat required is 3128.4 J .

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Chapter 10 Solutions

Basic Chemistry (5th Edition)

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