The Gas Law Quiz: Chemistry Trivia!

29 Questions | By Gilvin | Updated: Mar 21, 2022 | Attempts: 1091

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The Gas Law Quiz: Chemistry Trivia! - Quiz

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1.

Which law compares gases at two different sets of conditions, with temperature as a constant and pressure and volume as variables?
- A.
  
  Charle's Law
- B.
  
  Boyle's Law
- C.
  
  Combined Gas Law
- D.
  
  Ideal gas law
2.

If the pressure of a gas is 1.2 atmospheres with a volume of 12 L, how much pressure is exerted by the gas if the volume is changed to 9L? (Assume constant temperature)
- A.
  
  .9 L
- B.
  
  129.6 L
- C.
  
  6.0 L
- D.
  
  1.6 L
3.

If the pressure of a gas is 103.2 kPa at a temperature of 100 Celsius and a volume of 4L is changed to a lower pressure of 80 kPa and 100 degrees celsius, what will be the new volume? (Hint: kPa is kilo pascals -- a unit of measure for pressure).
- A.
  
  2,064 L
- B.
  
  0.3225 L
- C.
  
  5.16 L
- D.
  
  3.1 L
4.

A gas at a temperature of 80Celsius and a volume of 3.2 Liters is brought into an area with a temperature of 100 Celsius, what is the new volume if the pressure remains constant? Hint 1: This is Charles law (V1/T1 = V2/T2) Hint 2: ALL GAS PROBLEMS MUST use the KELVIN temperature scale. (To change from Celsius to Kelvin: add 273)
- A.
  
  3.38 L
- B.
  
  2.84 L
- C.
  
  3.75 L
- D.
  
  2.4 L
5.

A gas at a temperature of 34 Celsius and a volume of 6.3 Liters is brought into a new area where the gas expands to a volume of 8.0 Liters. What is the new temperature? (Assume constant Pressure)
- A.
  
  43.17 K
- B.
  
  389.84 K
- C.
  
  0.164 K
- D.
  
  1.48 K
6.

A gas in a balloon measures 2.2 L, 1.1 atmospheres, and 32 degrees Celsius. The environment is changed and the balloon is now 1.8 L and 1.4 atmospheres. What is the new temperature? Hint 1: Always change the temperature to the Kelvin scale. Hint 2: Pressure, volume, and temperature are all changed. Use the combined gas law:
- A.
  
  317.6 K
- B.
  
  33.32 K
- C.
  
  384.3 K
- D.
  
  0.02 K
7.

A gas in a balloon measures 3.6 L, 0.9 atmospheres, and 34 degrees Celsius. The environment is changed and the balloon is now 1.4 atmospheres at a temperature of 38 degrees Celsius. What is the new volume?
- A.
  
  2.59 L
- B.
  
  4.6 L
- C.
  
  220,961 L
- D.
  
  2.34 L
8.

What is the volume of 2 moles of Helium at a temperature of 32 degrees Celsius and a pressure of 1.1 atmospheres? Given R = 0.08321 Latm/molK and 8.314 kPa L/mol K Hint: There is only 1 set of conditions for this gas problem and the moles of the gas is given. This indicates the ideal gas law: PV = nRT. Remember that n is equal to the number of moles. P is the pressure, V is the volume and T is the temperature (change to Kelvin). The R MUST match the units in the rest of the problem. IF pressure is given in atmosphere, then use R = 0.08321 Latm/molK . IF pressure was given in kPa, then use 8.314 Kpa L/mol K Note also that volume MUST be in Liters and Temperature (as for all gas problems) must be in Kelvin.
- A.
  
  13.96 L
- B.
  
  .45 L
- C.
  
  46.14 L
- D.
  
  4,610 L
9.

What is the temperature of 3.4 moles of Helium at a pressure of 1.1 atmospheres and a volume of 3.7 Liters? (What is the temperature in Kelvin?) Given R = 0.08321 Latm/molK and 8.314 kPa L/mol K
- A.
  
  14.39 K
- B.
  
  12.15 K
- C.
  
  0.1 K
- D.
  
  142 K
10.

How many moles are present in a container that is 79.9 Liters with a pressure of 105 kPa and a temperature of 24 degrees Celsius? Given R = 0.08321 Latm/molK and 8.314 kPa L/mol K
- A.
  
  2.7 moles
- B.
  
  271 moles
- C.
  
  3.4 moles
- D.
  
  5.6 moles
11.

According to Charles Law, if you have a balloon inside a car at noon during a hot summer day the balloon molecules inside will increase in pressure.
- A.
  
  True
- B.
  
  False
12.

In a nitrogen gas occupies has a volume of 500ml at a pressure of 0.971atm.What volume will the gas occupy at a pressure of 1.50 atm, assuming the temperature remains constant?
- A.
  
  342mL
- B.
  
  424mL
- C.
  
  324mL
- D.
  
  442mL
- E.
  
  242mL
13.

Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can be expressed in Celsius (°C)and Fahrenheit(°F). So convert 123°C to K.
- A.
  
  396K
- B.
  
  486K
- C.
  
  369K
- D.
  
  458K
- E.
  
  693K
14.

Gas pressure is caused by
- A.
  
  Gas molecules heating up
- B.
  
  Gas molecules reacting with other gas molecules
- C.
  
  Gas molecules hitting the walls of a container
- D.
  
  Gas molecules hitting other gas molecules
15.

At a pressure of 5.0 atmospheres, a sample of gas occupies 40. liters. What volume will the same sample occupy at 1.0 atmosphere?
- A.
  
  0.0050 L
- B.
  
  0.13 L
- C.
  
  200 L
- D.
  
  8.0 L
16.

As the volume of confined gad decreases at a constant temperature, the pressure exerted by the gas ______
- A.
  
  Decreases
- B.
  
  Increases
- C.
  
  Stay the same
- D.
  
  Fluctuates
17.

1. A sample of argon has a volume of 0.43 mL at 299K. At what temperature in degrees Celsius will it have a volume of 1 mL.
- A.
  
  695°C
- B.
  
  422°C
- C.
  
  428°C
- D.
  
  694°C
18.

Each of these flasks contains the same number of molecules. In which container is the pressure highest?
- A.
  
  Flask 1
- B.
  
  Flask 2
- C.
  
  Flask 3
- D.
  
  Flask 4
- E.
  
  Flask 5
19.

Why would the pressure of a sample of gas at a constant volume fall 75 mmHg?
- A.
  
  The container exploded
- B.
  
  The temperature increased
- C.
  
  The temperature decreased
- D.
  
  Fewer particles were present
20.

If two moving steel balls collide, their total energy after the collision is the same as before. This is an example of
- A.
  
  Boyle's law
- B.
  
  The law of gravity
- C.
  
  An elastic collision
- D.
  
  Both Boyle's and Charles's law.
21.

A sample of oxygen occupies 560. mL when the pressure is 800.00 mmHg. At constant temperature, what volume does the gas occupy when the pressure decreases to 700.0 mmHg?
- A.
  
  80.0 mL
- B.
  
  490. mL
- C.
  
  600. mL
- D.
  
  640. mL
22.

What pressure (atm) is exerted by .750 mol of a gas at a temperature of 273 K and a volume of 5.00 L?
- A.
  
  2.1 atm
- B.
  
  3.4 atm
- C.
  
  4.98 atm
- D.
  
  760 atm
23.

A sample of gas at 25ºC has a volume of 11 L and exerts a pressure of 660 mmHg. How many moles of the gas are in the sample?
- A.
  
  .39 mol
- B.
  
  3.9 mol
- C.
  
  9.3 mol
- D.
  
  87 mol
24.

The pressure is the force per unit.
- A.
  
  Volume
- B.
  
  Area
- C.
  
  Length
- D.
  
  Depth
25.

A 180.0 mL volume of gas is measured at 87ºC. If the pressure remains unchanged, what is the volume of the gas at standard temperature?
- A.
  
  0.0 mL
- B.
  
  0.5 mL
- C.
  
  137 mL
- D.
  
  410 mL