Combined Gas Law Practice

If I initially have 4.0 L of a gas at a pressure of 1.1 atm, what will the volume be if I increase the pressure to 3.4 atm?

• 1.29 L

• 12.36 L

• 1.29 atm

• 12.36 atm

A sample of nitrogen occupies a volume of 250 mL at 25^oC. What volume will it occupy at 95^oC?

• 308.70 mL

• 456.1 mL

• 308.70^oC

• 456.1^oC

Hydrogen gas was cooled from 150^oC to 50^oC. Its new volume is 75 mL. What was its original volume?

• 98 mL

• 98 K

• 98^oC

• 98 L

A rigid plastic container holds 1.00 L methane gas at 0.9 atm pressure when the temperature is 22.0°C. How much more pressure will the gas exert if the temperature is raised to 44.6°C?

• 0.97 atm

• 1.82 atm

• 0.97^oC

• 1.82^oC

If a gas sample has a pressure of 30.7 kPa at 0.00°C, by how much does the temperature have to decrease to lower the pressure to 28.4 kPa?

• 33.89 ^oC

• -20.46 ^oC

• 597 ^oC

• -4.25 ^oC

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L 

• 7.81 L

• 4.63 L

• 4.36 L

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

• 0 K 

• 107 K 

• 207 K 

• 307 K 

How many moles of propane gas are in a 7.0 L tank at 20°C and 5.45atm of pressure?

• 0.629 mol

• 1.59 mol

• 23.2 mol

• 917 mol

A weather balloon has a volume of 105L at 0.97 atm when the temperature is 318K. What is the volume at 293K and 1.05 atm?

• 89.4 L

• 0.32 L

• 93.8 L

• 3.13 L

A balloon contains 3.5 L of He gas at 27 ^oC and 760 mmHg.  At what temperature in Celsius will its volume be 3.0 L at 830 mmHg?

• 8 ^oC

• 281 ^oC

• 123 ^oC

• 10^oC