Lesson: Phase Diagrams Glencoe • Chemistry • Matter & Change Chemistry • The Molecular Nature of Matter and Change • Eighth Edition Chemistry 13e • AP Edition Modern Chemistry Glencoe Science • Chemistry • Matter and Change

Chemistry

In this lesson, we will learn how to use the phase diagram of a material to identify its phase at given temperatures and pressures.

Worksheet

Q1:

The phase diagram for carbon dioxide describes its physical state at different values of temperature and pressure. The material can exist as a solid, liquid, gas, or supercritical fluid (SCF).

What is the state of carbon dioxide at 20C and 1,000 kPa?

What is the state of carbon dioxide at 10C and 20 MPa?

What is the state of carbon dioxide at 213 K and 100 bar?

What is the state of carbon dioxide at 193 K and 1 bar?

Q2:

The phase diagram for carbon dioxide describes its physical state at different values of temperature and pressure. The material can exist as a solid, liquid, gas or supercritical fluid (SCF).

Which phase transitions will take place when the pressure is increased from 10 kPa to 200 kPa at a constant temperature of 80C?

Which phase transitions will take place when the pressure is increased from 10 kPa to 1 GPa at a constant temperature of 25C?

Which phase transitions will take place when the pressure is decreased from 10 bar to 100 mbar at a constant temperature of 213 K?

Which phase transitions will take place if the temperature is increased from 193 K to 273 K at a constant pressure of 900 mbar, and the pressure is then increased to 100 bar with no change in temperature?

Q3:

The phase diagram for water describes its physical state at different values of temperature and pressure.

Which phase transitions will take place when the pressure is increased from 0 kPa to 200 kPa at a constant temperature of 0.0005C?

Which phase transitions will take place when the pressure is increased from 100 Pa to 200 kPa at a constant temperature of 40C?

Which phase transitions will take place when the pressure is decreased from 2 bar to 0 bar at a constant temperature of 233 K?

Which phase transitions will take place if the temperature is increased from 273 K to 373 K at a constant pressure of 1.2 bar, and the pressure is then decreased to 5 mbar with no change in temperature?

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.