Gas Laws

If you have 250,000 Pa, what is the pressure in atm?

• A. 250 atm

• B. 330 atm

• C. 0.33 atm

• D. 2.5 atm

STP stands for standard temperature and pressure, which means:

• A. 25 °C and 1 atm

• B. 273 K and 760 mmHg

• C. 0 °C and 150 kPa

To change the volume of a gas at constant temperature from 9.00 dm³ to 12.00 dm³ it would be necessary to change the pressure from 101.3 kPa to kPa.

• A. 304

• B. 76.0

• C. 33.7

• D. 136

According to Boyle's Law, the relationship between the pressure and the volume of a gas at constant temperature is:

• A. positively correlated.

• B. inversely proportional.

• C. numerically inconsistent.

The total pressure of a mixture of gases in a container of fixed volume is equal to the:

• A. pressure exerted by the gas that has the most mass.

• B. pressure exerted by the gas with the greatest number of particles.

• C. sum of the pressures each gas would exert by itself in the same container.

• D. product of the pressures of each of the gases.

If the temperature of a gas is increased (constant pressure), the volume

• A. decreases

• B. increases

• C. remains the same

If the temperature of a gas is decreased (constant volume), the pressure

• A. decreases

• B. increases

• C. remains the same

If the volume of a gas is decreased (constant temperature), the pressure

• A. decreases

• B. increases

• C. remains the same

What is the volume of a container if it is occupied by 5.00 mol of a gas at 20.0⁰C and 95.0 KPa?

• 100L

• 128L

• 128mL

• 130L

Maintaining constant pressure, the volume of a gas is increased from 25.0L to 50.0L by heating it. If the original temperature was 20.0⁰C, what is the new temperature?

• 586K

• 400K

• 586⁰C

• 400⁰C