3 Ideal Gases Calculations

A gas that has a pressure of 2 Pa and a volume of 10 m3 at 300K. What would be the new volume if the pressure was changed to 1 Pa keeping the system at 300 K?

• 5 m3

• 20 m3

• 3000 m3

• 10 m3

How many particles in 2.5 mole of oxygen gas O₂?

• 1.5 x 10^24

• 6.0 x 10^24

• 32

• 2.4 x 10^24

If I have 4 moles of Argon gas at 560kPa and 0.012m³, what is the temperature?

• -68.4K

• 202.1K

• 22.1K

• 295.7K

• Other

The variable "n" in the ideal gas law refers to ___

• the number of molecules of gas

• the number of moles of gas

• the number of collisions per second

• the ideal gas constant

A fixed mass of an ideal gas initially has a volume V and an absolute temperature T. Its initial pressure could be doubled by changing its volume and temperature to

• V/2 and 4T

• V/4 and T/2

• 2V and T/4

• 4V and 2T

pV = NkT

what is N ?

• Number of particles

• Number of moles

• Number of times you've attempted this question

• Number of different types of gas in a mixture

A gas occupies a volume of 0.10 m³ at a pressure of 1.8 MPa. Determine the volume of the gas if the pressure is increased to 2.4 MPa whilst the temperature is kept constant.

• 0.025 m³

• 0.050 m³

• 0.075 m³

• 0.100 m³

A gas occupies a volume of 1.2 m³ at 20°C. Determine the volume it occupies at 130°C if its pressure is kept constant.

• 0.185m³

• 1.65 m³

• 5.265 m³

• 7.8 m³

My hydrogen-powered car has 3 moles of H, of 0.06m³ and it's at 400K, what is the pressure?

• 1247900 kPa

• 150 kPa

• 5 kPa

• 166 kPa

• Other

If I have 7.7 moles of chlorine gas at a pressure of 9000Pa and at 56^oC, what is the volume?

• 2.3 m³

• 393 m³

• 39.0 m³

• 17 m³

• Other