Chap 8: Temperature and Ideal Gas

Question 1

● Zeroth Law of Thermodynamics:

Answer 1

When two or more objects are in thermal equilibrium they must be at the same temperature and there is no net transfer of thermal energy between them when they are placed in thermal contact.

Question 2

● Absolute zero:

Answer 2

The temperature at which all substances have the minimum internal energy.

Question 3

● Absolute/thermodynamic temperature scale:

Answer 3

Temperature scale that is independent of the property of any particular substance and has an absolute zero.

Question 4

● One mole:

Answer 4

One mole of any substance contains 6.02 × 1023 particles.

Question 5

● Ideal gas:

Answer 5

A hypothetical gas that has negligible volume compared to the volume it occupies negligible forces of attraction between gas molecules and obeys the ideal gas equation at all pressure

Question 6

● Basic assumptions of the kinetic theory of gases:

Answer 6

○ Perfectly elastic collisions between the gas molecules and the walls of the container.

○ Total volume of the gas molecules is negligible compared to the volume occupied by the gas.

○ The duration of a collision is negligible compared with the time between collisions.

○ There are a large number of molecules in constant random motion.

○ The intermolecular forces of attraction between molecules are negligible.