Quiz
Question 1
A balloon contains 4 moles of an ideal gas with a volume of 5.0 L. If an additional 8 moles of the gas is added at constant pressure and temperature, what will be the final volume of the balloon?
Question 2
What is the density (in g/L) of a gas with a molar mass of 60 g/mol at 0.75 atm and 27 °C?
Question 3
4 moles of nitrogen gas are confined to a 6.0 L vessel at 177 °C and 12.0 atm. If the vessel is allowed to expand isothermically to 36.0 L, what would be the final pressure?
Question 4
A 9.0 L volume of chlorine gas is heated from 27 °C to 127 °C at constant pressure. What is the final volume?
Question 5
The temperature of a sample of an ideal gas in a sealed 5.0 L container is raised from 27 °C to 77 °C. If the initial pressure of the gas was 3.0 atm, what is the final pressure?
Question 6
A 0.614 mole sample of ideal gas at 12 °C occupies a volume of 4.3 L. What is the pressure of the gas?
Question 7
Sulfur dioxide (SO2) gas is a component of car exhaust and power plant discharge, and it plays a major role in the formation of acid rain. Consider a 3.0 L sample of gaseous SO2 at a pressure of 1.0 atm. If the pressure is changed to 1.5 atm at a constant temperature, what will be the new volume of the gas?
Question 8
A sample of gas at 15ºC and 1 atm has a volume of 2.50 L. What volume will this gas occupy at 30ºC and 1 atm?
Question 9
Find the final pressure of gas at 150 K, if the pressure of gas is 210 kPa at 120 K.
GIVEN:
P1= 210 kPa
T1= 120 K
P2= ?
T2= 150 K
Question 10
A 20 L cylinder containing 6 atm of gas at 27 °C. What would the pressure of the gas be if the gas was heated to 77 °C?
MULTIPLE CHOICE
1.What are standard temperature and pressure conditions forgases?
a. 0°C and 0 torr
b. 0 K and 760 torr
c. -273°C and 1 atm
d. 0°C and 760 torr
e. 0°C and 1 torr
2.If the volume of a confined gas is doubled while thetemperature remains constant, what change (if any) would beobserved in the pressure?
a. It would be half as large.
b. It would double.
c. It would be four times as large.
d. It would be 1/4 as large.
e. It would remain the same.
3.A given mass of gas in a rigid container is heated from 100°Cto 500°C. Which of the following responses best describes whatwill happen to the pressure of the gas?
a. The pressure will decrease by a factor of five.
b. The pressure will increase by a factor of five.
c. The pressure will increase by a factor of about two.
d. The pressure will increase by a factor of about eight.
e. The pressure will increase by a factor of about twenty-five.
4.If 3.0 L of helium at 20.0°C is allowed to expand to 4.4 L,with the pressure remaining the same, what is the new temperature?
a. 702°C
b. 430°C
c. 157°C
d. -30.0°C
e. -55°C
5.An ideal gas is contained in a volume V at temperature T. If the volume is doubled at constant pressure, the temperature will be:
a.unchanged
b.halved
c.doubled
d.unable to be determined without more information
6.An ideal gas is sealed in a container at constant volume. If the temperature T is increased to 4T, the pressure will be:
a.unchanged
b.increased to 4P
c.decreased by 4P
d.unable to be determined without more information
7.A sample of an ideal gas is held at constant temperature. If the pressure is decreased to 1/2 P, the volume will be:
a.increased to 2V
b.decreased to 1/2 V
c.unchanged
d.unable to be determined without more information
8.A cylinder with 2 moles of an ideal gas is held at a constant volume and pressure. If 2 more moles of the gas are added to the cylinder, the temperature will
a.unchanged
b.doubled
c.halved
d.unable to be determined without more information
9.The temperature of an ideal gas is increased from 300K to 1200K. The kinetic energy:
remains constant
a.increases by a factor of 2
d.increases by a factor of 4
c.increases by a factor of 8
d.increases by a factor of 16
10.The temperature of an ideal gas is increased from 300K to 600K. The average molecular speed of the gas molecules
a.increases 4 times
b.increases 2 times
c.remains the same
d.decreases 2 times
e.decreases 4 times
Question 1
A balloon contains 4 moles of an ideal gas with a volume of 5.0 L. If an additional 8 moles of the gas is added at constant pressure and temperature, what will be the final volume of the balloon?
Question 2
What is the density (in g/L) of a gas with a molar mass of 60 g/mol at 0.75 atm and 27 °C?
Question 3
4 moles of nitrogen gas are confined to a 6.0 L vessel at 177 °C and 12.0 atm. If the vessel is allowed to expand isothermically to 36.0 L, what would be the final pressure?
Question 4
A 9.0 L volume of chlorine gas is heated from 27 °C to 127 °C at constant pressure. What is the final volume?
Question 5
The temperature of a sample of an ideal gas in a sealed 5.0 L container is raised from 27 °C to 77 °C. If the initial pressure of the gas was 3.0 atm, what is the final pressure?
Question 6
A 0.614 mole sample of ideal gas at 12 °C occupies a volume of 4.3 L. What is the pressure of the gas?
Question 7
Sulfur dioxide (SO2) gas is a component of car exhaust and power plant discharge, and it plays a major role in the formation of acid rain. Consider a 3.0 L sample of gaseous SO2 at a pressure of 1.0 atm. If the pressure is changed to 1.5 atm at a constant temperature, what will be the new volume of the gas?
Question 8
A sample of gas at 15ºC and 1 atm has a volume of 2.50 L. What volume will this gas occupy at 30ºC and 1 atm?
Question 9
Find the final pressure of gas at 150 K, if the pressure of gas is 210 kPa at 120 K.
GIVEN:
P1= 210 kPa
T1= 120 K
P2= ?
T2= 150 K
Question 10
A 20 L cylinder containing 6 atm of gas at 27 °C. What would the pressure of the gas be if the gas was heated to 77 °C?
MULTIPLE CHOICE
1.What are standard temperature and pressure conditions forgases?
a. 0°C and 0 torr
b. 0 K and 760 torr
c. -273°C and 1 atm
d. 0°C and 760 torr
e. 0°C and 1 torr
2.If the volume of a confined gas is doubled while thetemperature remains constant, what change (if any) would beobserved in the pressure?
a. It would be half as large.
b. It would double.
c. It would be four times as large.
d. It would be 1/4 as large.
e. It would remain the same.
3.A given mass of gas in a rigid container is heated from 100°Cto 500°C. Which of the following responses best describes whatwill happen to the pressure of the gas?
a. The pressure will decrease by a factor of five.
b. The pressure will increase by a factor of five.
c. The pressure will increase by a factor of about two.
d. The pressure will increase by a factor of about eight.
e. The pressure will increase by a factor of about twenty-five.
4.If 3.0 L of helium at 20.0°C is allowed to expand to 4.4 L,with the pressure remaining the same, what is the new temperature?
a. 702°C
b. 430°C
c. 157°C
d. -30.0°C
e. -55°C
5.An ideal gas is contained in a volume V at temperature T. If the volume is doubled at constant pressure, the temperature will be:
a.unchanged
b.halved
c.doubled
d.unable to be determined without more information
6.An ideal gas is sealed in a container at constant volume. If the temperature T is increased to 4T, the pressure will be:
a.unchanged
b.increased to 4P
c.decreased by 4P
d.unable to be determined without more information
7.A sample of an ideal gas is held at constant temperature. If the pressure is decreased to 1/2 P, the volume will be:
a.increased to 2V
b.decreased to 1/2 V
c.unchanged
d.unable to be determined without more information
8.A cylinder with 2 moles of an ideal gas is held at a constant volume and pressure. If 2 more moles of the gas are added to the cylinder, the temperature will
a.unchanged
b.doubled
c.halved
d.unable to be determined without more information
9.The temperature of an ideal gas is increased from 300K to 1200K. The kinetic energy:
remains constant
a.increases by a factor of 2
d.increases by a factor of 4
c.increases by a factor of 8
d.increases by a factor of 16
10.The temperature of an ideal gas is increased from 300K to 600K. The average molecular speed of the gas molecules
a.increases 4 times
b.increases 2 times
c.remains the same
d.decreases 2 times
e.decreases 4 times