Yr11 Chem 15.2 Gas KeyQs

Convert 14000 Pa to kPa.

• 14 kPa
• 140 kPa
• 1.4 kPa
• 0.014 kPa

Convert 4.24 atm to kPa.

• 500 kPa
• 430 kPa

• 450 kPa
• 400 kPa

Convert 120 kPa to atm.

• 1.00 atm

• 1.18 atm

• 150 kPa
• 0.500 atm

Convert 120°C to absolute temperature.

• 100 K
• 393 K

• 373 K

• 250 K

Convert -145°C to absolute temperature.

• 0 K
• 145 K
• -128 K

• 128 K

What volume of gas, in litres, is occupied by 0.20 mol of hydrogen at 115 kPa and 40°C?

What volume of gas, in litres, is occupied by 12.5 mol of carbon dioxide at 5 atm and 150°C?

What volume of gas, in litres, is occupied by 8.50 g of hydrogen sulfide (H₂S) at 100 kPa and 27°C?

Calculate the pressure in a 5.0 L flask which contains 0.25 mol of nitrogen at a temperature of 5°C.

Calculate the mass of helium in a balloon if the volume is 100 L at a pressure of 95 000 Pa and a temperature of 0°C.