Chapter 11, Problem 11.51SP

Interpretation Introduction

Interpretation:

The molar heating curve for sodium is to be drawn.

Concept introduction:

Phase diagram is a graph that represents the solid phase, liquid phase, and gaseous phase of one substance or mixture of a substance under various conditions of temperature and pressure.

Temperature and pressure on a phase diagram at which gas, liquid, and solid phases coexist is called triple point. The maximum temperature and pressure in the phase diagram at which substance lies in liquid phases is called a critical point. The temperature and pressure at which liquid or gas is neither a true liquid nor a true gas is called a supercritical point. The process that involves a change in the physical state of substance and does not affect the chemical state of a substance is called phase transition.