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Topic 1 – Matter and Energy
36. Gas Law: Mixed Gas law calculations
1. A gas in a closed container has a pressure of 300 kPa at 303 K. If the volume is held constant and the
temperature is lowered to 101 K, what will be the new pressure? 4) 100 kPa
3) 800 kPa
1) 900 kPa
2) 200 kPa
2. A gas has a volume of 1000 mL at a temperature of 20 K and a pressure of 1 atm. If the temperature
is changed to 40 K and the pressure is changed to 0.5 atm, what will the new volume of the gas?
1) 250 ml 2) 1000 ml 3) 4000 ml 4) 5600 ml
3. A gas has a volume of 5 L at 0.2 atm. If the temperature of the gas remains the same and the
pressure is changed to 0.6 atm, what is the new volume of the gas ? 4) 1.7 L
3) 0.6 L
1) 15 L
2) 12 L
o
4. A gas sample has a volume of 12 liters at 0 C and 0.5 atm. What will be the new volume of the gas
when the pressure is changed to 1 atm and the temperature is held constant?
1) 24 L 2) 18 L 3) 12 L 4) 6.0 L
5. At STP, a gas has a volume of 250 ml. If the pressure remained constant, at what Kelvin temperature
would the gas has a volume of 500 ml?
1) 137 K 2) 500 K 3) 546 K 4) 273 K
o
6. A gas has a pressure of 120 kPa and a volume of 50.0 milliliters when its temperature is 127 C. What
o
volume will the gas occupies at a pressure of 60 kPa and at a temperature of -73 C?
1) 12.5 ml 2) 50.0 ml 3) 100 ml 4) 200 ml
7. The graph below shows a change in the volume of a gas sample as its temperature rises at constant
pressure.
What temperature is represented by point B?
1) 546 K 2) 298 K 3) 273 K 4) 2 K
8. The graph below represents the relationship between pressure and volume of a gas at constant
temperature.
The product of pressure and volume is constant. According to the graph, what s the
product in atm . ml ?
1) 20 2) 40 3) 60 4) 80
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 143
Topic 1 – Matter and Energy
36. Gas Law: Mixed Gas law calculations
1. A gas in a closed container has a pressure of 300 kPa at 303 K. If the volume is held constant and the
temperature is lowered to 101 K, what will be the new pressure? 4) 100 kPa
3) 800 kPa
1) 900 kPa
2) 200 kPa
2. A gas has a volume of 1000 mL at a temperature of 20 K and a pressure of 1 atm. If the temperature
is changed to 40 K and the pressure is changed to 0.5 atm, what will the new volume of the gas?
1) 250 ml 2) 1000 ml 3) 4000 ml 4) 5600 ml
3. A gas has a volume of 5 L at 0.2 atm. If the temperature of the gas remains the same and the
pressure is changed to 0.6 atm, what is the new volume of the gas ? 4) 1.7 L
3) 0.6 L
1) 15 L
2) 12 L
o
4. A gas sample has a volume of 12 liters at 0 C and 0.5 atm. What will be the new volume of the gas
when the pressure is changed to 1 atm and the temperature is held constant?
1) 24 L 2) 18 L 3) 12 L 4) 6.0 L
5. At STP, a gas has a volume of 250 ml. If the pressure remained constant, at what Kelvin temperature
would the gas has a volume of 500 ml?
1) 137 K 2) 500 K 3) 546 K 4) 273 K
o
6. A gas has a pressure of 120 kPa and a volume of 50.0 milliliters when its temperature is 127 C. What
o
volume will the gas occupies at a pressure of 60 kPa and at a temperature of -73 C?
1) 12.5 ml 2) 50.0 ml 3) 100 ml 4) 200 ml
7. The graph below shows a change in the volume of a gas sample as its temperature rises at constant
pressure.
What temperature is represented by point B?
1) 546 K 2) 298 K 3) 273 K 4) 2 K
8. The graph below represents the relationship between pressure and volume of a gas at constant
temperature.
The product of pressure and volume is constant. According to the graph, what s the
product in atm . ml ?
1) 20 2) 40 3) 60 4) 80
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 143
