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Topic 1 – Matter and Energy
30. Gas Law at Constant Pressure: Recalling concept facts
1. At constant pressure, the volume of a confined gas varies
1) Directly with the Kelvin temperature 3) Directly with the mass of the gas
4) Indirectly with the mass of the gas
2) Indirectly with the Kelvin temperature
2. At constant pressure, as temperature of a gas in a closed cylinder increases, the volume of the gas
1) Decreases
2)Increases
3) Remains the same
3. At constant pressure, as the pressure of a gas in a cylinder is decreased by half, the volume of the gas
will 2) Increase by 4 times 3) Decrease by half 4) Remain the same
1) Increase by 2 times
4. A gas is at STP. If the pressure on the gas is held constant while the volume of the gas is doubled, the
new temperature of the gas will be
1) Twice as much 2) Four times as great 3) Half as much 4) One-fourth as much Need Help? Study Book Pg 22 Set 34
5. Which graph best illustrates the relationship between the Kelvin temperature of a gas and its volume
when the pressure on the gas is held constant?
1) 2) 3) 4)
31. Gas Law at Constant pressure: Temperature – Volume calculations
1. A sample of oxygen gas has a volume of 150. ml at 300 K. If the pressure is held constant and the
temperature is raised to 600 K, the new volume of the gas will be
1) 75.0 ml 2) 150 ml 3) 300 ml 4) 600 ml
2. A 4.0 L of O2 gas has a pressure of 100 K at constant pressure. What will the new volume be if the
temperature of the gas is decreased to 25 K?
1) 16 L 2) 1 L 3) 2 L 4) 100 L
3. At constant pressure, a 200. milliliter sample of a gas is at a temperature of 600 K. What temperature
of the gas will produce a new volume of 400. milliliters?
1) 300 K 2) 400 K 3) 600 K 4) 1200 K
4. A 1.5 L sample of carbon dioxide gas has its temperature changed to 200 K in order to produce a
new volume of 6.0 L of carbon dioxide gas. Assuming the pressure of the gas is constant, what was
the initial temperature of the gas?
1) 500 K 2) 750 K 3) 100 K 4) 50 K Need Help? Study Book Pg 25 Set 40
5. At STP, the volume of a hydrogen gas is 40 ml. What will be the new volume of the hydrogen gas if
the temperature is changed to 546 K and the pressure is held constant?
1) 80 ml 2) 20 ml 3) 273 ml 4) 546 ml
6. A gas originally at STP has a volume of 0.8 L. If the pressure of the gas is held constant, at what
temperature will the volume of the gas decreased to 0. 6 L? 3) 364 k 4) 131 K
2) 205 K
1) 273 K
o
7. A 20 ml sample of a gas is at 30 C. If, at constant pressure, the temperature of the gas is changed to
o
60 C, what will the new volume of the gas be?
1) 40 ml 2) 10 ml 3) 22 ml 4) 18 ml
140 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 1 – Matter and Energy
30. Gas Law at Constant Pressure: Recalling concept facts
1. At constant pressure, the volume of a confined gas varies
1) Directly with the Kelvin temperature 3) Directly with the mass of the gas
4) Indirectly with the mass of the gas
2) Indirectly with the Kelvin temperature
2. At constant pressure, as temperature of a gas in a closed cylinder increases, the volume of the gas
1) Decreases
2)Increases
3) Remains the same
3. At constant pressure, as the pressure of a gas in a cylinder is decreased by half, the volume of the gas
will 2) Increase by 4 times 3) Decrease by half 4) Remain the same
1) Increase by 2 times
4. A gas is at STP. If the pressure on the gas is held constant while the volume of the gas is doubled, the
new temperature of the gas will be
1) Twice as much 2) Four times as great 3) Half as much 4) One-fourth as much Need Help? Study Book Pg 22 Set 34
5. Which graph best illustrates the relationship between the Kelvin temperature of a gas and its volume
when the pressure on the gas is held constant?
1) 2) 3) 4)
31. Gas Law at Constant pressure: Temperature – Volume calculations
1. A sample of oxygen gas has a volume of 150. ml at 300 K. If the pressure is held constant and the
temperature is raised to 600 K, the new volume of the gas will be
1) 75.0 ml 2) 150 ml 3) 300 ml 4) 600 ml
2. A 4.0 L of O2 gas has a pressure of 100 K at constant pressure. What will the new volume be if the
temperature of the gas is decreased to 25 K?
1) 16 L 2) 1 L 3) 2 L 4) 100 L
3. At constant pressure, a 200. milliliter sample of a gas is at a temperature of 600 K. What temperature
of the gas will produce a new volume of 400. milliliters?
1) 300 K 2) 400 K 3) 600 K 4) 1200 K
4. A 1.5 L sample of carbon dioxide gas has its temperature changed to 200 K in order to produce a
new volume of 6.0 L of carbon dioxide gas. Assuming the pressure of the gas is constant, what was
the initial temperature of the gas?
1) 500 K 2) 750 K 3) 100 K 4) 50 K Need Help? Study Book Pg 25 Set 40
5. At STP, the volume of a hydrogen gas is 40 ml. What will be the new volume of the hydrogen gas if
the temperature is changed to 546 K and the pressure is held constant?
1) 80 ml 2) 20 ml 3) 273 ml 4) 546 ml
6. A gas originally at STP has a volume of 0.8 L. If the pressure of the gas is held constant, at what
temperature will the volume of the gas decreased to 0. 6 L? 3) 364 k 4) 131 K
2) 205 K
1) 273 K
o
7. A 20 ml sample of a gas is at 30 C. If, at constant pressure, the temperature of the gas is changed to
o
60 C, what will the new volume of the gas be?
1) 40 ml 2) 10 ml 3) 22 ml 4) 18 ml
140 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
