Chapter 17, Problem 7STP

Interpretation Introduction

Interpretation:

To calculate the heat absorbed in region A for neon.

Concept Introduction :

When matter transitions from one state (solid, liquid, gas, or plasma), it goes through a phase shift. Both when the pressure on the system changes and when enough energy is added to (or taken away from) the system, these changes take place.

Answer to Problem 7STP

  $0.33\text{ kJ}$

Explanation of Solution

In region A, an only phase transition occurs from solid to liquid. So, heat absorbed will be equal to enthalpy of fusion.

The enthalpy of fusion for neon is $0.33\text{kJ}/\text{mol}$ /

No. of mol given is 1 mol.

Thus, heat absorbed will be $0.33\text{ kJ}$