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In a number of applications, a chemist has to deal with all three gas variables changing. As a result, Boyle's, Charles' and Gay-Lussac's laws have been combined into one equation, called the Combined Gas Law. P1V1/T1 = P2V2/T2. Avogadro's principle states that equal volumes of gas at the same temperature and pressure contain equal numbers of particles. This quiz will cover simple combined gas law and Avogadro's Principle problems. You will need a calculator. Select the best answer from the choices.
A helium balloon at sea level has a volume of 2.1L at .998 atm and 36 C. If it is released and rises to an elevation at which the pressure is .900 atm and the temperature is 28 C, what will be its new volume?
2.3L
1.3L
2.4L
2.9L
At 0 C and 1 atm, a sample of gas occupes 30.0mL. If the temperature increases to 30 C and the entire gas sample is transferred to a 20.0mL container, what will be the new pressure inside the container?
2.6 atm
2.56 atm
1.66 atm
2 atm
A sample of air in a syringe exerts a pressure of 1.02 atm at a temperature of 22.0 C. The syringe is placed in boiling water at 100 C. The pressure is increased to 1.23 atm by pushing the plunger in, which reduces the volume to .224mL. What was the original volume?
21.4mL
.214mL
21.4mL
20 mL
A cold 2L bottle of soda contains 46.0mL of gas confined at a pressure of 1.30 atm at a temperature of 5.0 C. If the bottle is dropped in a lake and sinks to a depth where the pressure is 2.85 atm and the temperature is 2.09 C, what will be the volume of gas in the bottle?
20.5 mL
22.3 mL
20.4 mL
20.8 mL
When using Avogadro's Principle, the molar volume of any gas at standard temperature and pressure (0 C and 1 atm) is 22.4L. One mole of gas contains Avogadro's number of particles. To find out the volume of a number of particles, multiply the number of moles by 22.4L. Determine the volume of a container that holds 2.40 mol of gas at STP.
32L
59L
54L
56L
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be?
1.8 atm
2 atm
3 atm
7.8 atm
I’ve got a car with an internal volume of 12,000 L. If I drive my car into the river and it implodes, what will be the volume of the gas when the pressure goes from 1.0 atm to 1.4 atm?
8071.23 L
8571.43 L
9071.43 L
5671.43 L
Oxygen gas is at a temperature of 40 degrees when it occupies a volume of 2.3 liters. To what temperature (in oC) should it be raised to occupy a volume of 6.5 liters?
615.94 degree C
611.84 k
61.84 degree C
611.84 degree C
