a) A sample of oxygen occupies 15.0 mL under a pressure of .928 atm at 25.0C. What would be its volume at another time when the pressure was .948 atm and the temperature 19.0C?

 

b) 34mL of nitrogen gas is measured at 21.0C and .953atm pressure. Calculate the volume at STP.

 

c) The volume of a sample of hydrogen gas is 246. mL at STP (standard temperature and pressure). What is the temperature of the gas, when the pressure is then increased to 1.20 atm and the volume is decreased to 225. mL?

Applying Ideal Gas Laws Problems

Name: ________________________

1. A sample of hydrogen gas at a temperature of 40 K changes its volume from 50 liters to 30 liters. What is the new temperature after the reduction in volume?

2. A sample of radon gas at 300 kPa and 120 ⁰C, and cools down to 80 ⁰C. What is the new pressure if the number of moles and volume remains the same?

3. A sample of nitrogen gas has a pressure of 2.50 atm at a temperature of 25⁰C. What temperature is required to increase the pressure to 4.00 atm, assuming the volume is fixed and the amount of gas does not change?

4. What happens to the pressure inside a rigid container if the amount of nitrogen gas increases from 0.500 mole to 0.750 mole? The original pressure is 98.0 kPa, and the temperature remains constant.

5. The volume of a sample of gas is 200 mL at 275 K and 0.891 atm. What will the new volume of the gas be at 77⁰C and 98.5 kPa?

6. What is the volume occupied by 36.0 grams of water vapor at a temperature of 125⁰C and a pressure of 102 kPa?

A sample of oxygen occupies 1.00 L. If the temperature remains constant and the pressure on the oxygen is decreased to 2/3 the original pressure, what is the new volume?

Please help with these practice problems.

A gas has a pressure of 28.01 kPa at a temperature of 247 K. What will the temperature be if the pressure is increased to 35.4 kPa?

At 218°C, a gas has a volume of 89 L. If the temperature increases to 230°C, what will the final volume be?

73.2 L of He gas have a pressure of 1.89 atm. If the pressure is increased to 2.02 atm, what will the volume be?

What will happen to the volume of a gas when 33.28 L of gas is heated from 37°C to 192°C?

A gas is put into a 4.3 L cylinder under 2.07 atm at -55°C. The gas is compressed to 1.09 L while heated to 388°C. What is the final pressure of the gas?

2.98 L of helium at 18°C has a pressure of 2.01 atm. What will the temperature be if the pressure increases to 2.75 atm while the volume drops to 1.03 L?

8.10 L of nitrogen has at 302 K has a pressure of 1.92 atm. If the pressure changes to 2.53 atm and the temperature cools to 138 K, what will the new volume be?

3.109 L of gas at 22 degrees Celcius is heated to 109 degrees Celcius. While the pressure is held at 1928 mm Hg, what will the new volume of gas be?

At 182°C, a gas has a pressure of 1.29 atm and a volume of 73.8 L. If the pressure increases to 1.34 atm and the temperature decreases to 165°C, what will the volume of the gas be?

12.43 L of He gas have a pressure of 85.0 mm Hg. If the temperature is held constant, what will the volume be if the pressure decreases to 73.5 mm Hg?