Chapter 10, Problem 10.80QP

Interpretation Introduction

Interpretation: The phase changes that occur when ${\text{CO}}_{\text{2}}$ initially at $-80°\text{C}$ and $\text{8}\text{.0}\text{atm}$ is allowed to warm to $-25°\text{C}$ at $\text{5}\text{.0}\text{atm}$ are to be stated.

Concept introduction: In the phase diagram different phases of a substance are representated graphically at different temperatures and pressures.

Triple point is a point present in the pressure- temperature graph. It is defined as the point at which all the three phases of a substance coexist in equilibrium with each other at a time.

To determine: The phase changes that occur when ${\text{CO}}_{\text{2}}$ initially at $-80°\text{C}$ and $\text{8}\text{.0}\text{atm}$ is allowed to warm to $-25°\text{C}$ at $\text{5}\text{.0}\text{atm}$.