Ch10: Properties Of Gases

Question 1

Gas

Answer 1

Substance that has no well-defined boundaries but diffuses rapidly to fill any container in which it is placed

Question 2

What is standard..
1. Pressure
2. Temperature
3. Volumes

Answer 2

1. 100 kPa
2. 273 K
3. 1 metre cubed

Question 3

Boyle’s Law

Answer 3

At a constant temperature, the volume of a fixed mass of gas is inversely proportional to its pressure

Question 4

Charles’ Law

Answer 4

At a constant pressure, the volume of a fixed mass of a gas is directly proportional to its temperature measured on the Kelvin scale

Question 5

Gay-Lussac’s Law of Combining Volumes

Answer 5

In a reaction between gases, the volumes of the reacting gases and the volumes of any gaseous products are in the ratio of small whole numbers provided the volumes are measured at the same temperature and pressure

Question 6

Avogadro’s Law

Answer 6

Equal volumes of gases contain equal numbers of molecules under the same conditions of temperature and pressure

Question 7

Ideal gas

Answer 7

One that perfectly obeys all the assumptions of kinetic theory of gases under all conditions of temperature and pressure

Question 8

Real gases

Answer 8

They differ from ideal gases because the forces of attraction and repulsion do exist between molecules and the volume of the molecules is not negligible