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Gas Laws Quiz

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Boyle’s law states that:

a)

Pressure is directly proportional to volume

b)

Pressure is inversely proportional to volume

c)

Pressure is directly proportional to temperature

d)

Pressure is inversely proportional to temperature

2.

Which gas law explains why balloons expand when heated?

a)

Boyle’s law

b)

Charles’s law

c)

Avogadro’s law

d)

Dalton’s law

3.

According to Avogadro’s law, equal volumes of gases at the same temperature and pressure contain:

a)

Equal masses

b)

Equal numbers of atoms

c)

Equal numbers of molecules

d)

Equal densities

4.

The ideal gas equation is:

a)

PV = nT

b)

PV = nRT

c)

P + V = nRT

d)

PV/T = nR

5.

Dalton’s law of partial pressures states that the total pressure exerted by a mixture of gases is equal to:

a)

The sum of the masses of the gases

b)

The product of the pressures of the gases

c)

The sum of the partial pressures of the gases

d)

The difference in the pressures of the gases

6.

Gay-Lussac’s law shows the relationship between:

a)

Pressure and volume

b)

Pressure and temperature

c)

Volume and temperature

d)

Mass and volume

7.

If a gas has its volume doubled at constant temperature, its pressure will:

a)

Remain the same

b)

Double

c)

Reduce to half

d)

Increase four times

8.

At constant pressure, the volume of a gas is directly proportional to its:

a)

Density

b)

Mass

c)

Temperature (in Kelvin)

d)

Pressure

9.

What is the value of the gas constant (R) in SI units?

a)

8.31 J mol⁻¹ K⁻¹

b)

0.0821 L atm mol⁻¹ K⁻¹

c)

22.4 L mol⁻¹

d)

273 K

10.

Which law states that the diffusion of a gas is inversely proportional to the square root of its molar mass?

a)

Charles’s law

b)

Graham’s law

c)

Avogadro’s law

d)

Dalton’s law

11.

At STP, one mole of an ideal gas occupies:

a)

1 L

b)

22.4 L

c)

273 L

d)

8.31 L

12.

Which of the following gas laws combines Boyle’s, Charles’s, and Gay-Lussac’s laws?

a)

Dalton’s law

b)

Combined gas law

c)

Avogadro’s law

d)

Graham’s law

13.

The compressibility factor (Z) of an ideal gas is equal to:

a)

0

b)

1

c)

< 1

d)

> 1

14.

Which gas law is used in calculating the pressure of gases dissolved in liquids (like oxygen in blood)?

a)

Graham’s law

b)

Henry’s law

c)

Boyle’s law

d)

Dalton’s law

15.

In the ideal gas equation, the unit of pressure (P) in SI is:

a)

atm

b)

bar

c)

pascal (Pa)

d)

torr