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# Gas Laws

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##### Description:

Students will learn about the Gas Laws and will be able to perform calculations.

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Tutorial

Stop, rewind, rewatch as needed/

Source: Langhans and various educators

## Gas Laws: These are the “S” in WSQ. You must have them under your video notes completed by the due date on the Unit Plan.

Be sure to use Given and Work to figure out which formula to use:

1. A balloon is filled with 35.0 L of helium in the morning when the temperature is 20.00ºC. By noon the temperature has risen to 45.00ºC. What is the new volume of the balloon?

2. 6.0 L of gas in a piston at a pressure of 1.0 atm are compressed until the volume is 3.5 L.  What is the new pressure inside the piston?

3.  What is the pressure of a fixed volume of a gas at 30.0ºC if it has a pressure of 1.1 atm at 15.0º C?

HARDER!

Combined Gas Law Problems:

1.A gas balloon has a volume of 106.0 liters when the temperature is 45.0 °C and the pressure is 740.0 mm of mercury. What will its volume be at 20.0 °C and 780 .0 mm of mercury pressure?

2.If 10.0 liters of oxygen at STP are heated to 512 °C, what will be the new volume of gas if the pressure is also increased to 1520.0 mm of mercury?

3.A gas is heated from 263.0 K to 298.0 K and the volume is increased from 24.0 liters to 35.0 liters by moving a large piston within a cylinder. If the original pressure was 1.00 atm, what would the final pressure be?

Source: Langhans and various educators

## HOT Question

Source: inspired by C. Kirch