Answers PBCSD_Grade_Forgiveness_2003310_Physical Science_S1_2022Behavior of Gases

Behavior of Gases Answers

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Oran fills in the table below to organize information about the gas laws. In which numbered cells should he place pressure?

2, 4, and 5

1, 4, and 6

2, 3, and 5

1, 3, and 6

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A gas has an initial volume of 168 cm3 at a temperature of 255 K and a pressure of 1.6 atm. The pressure of the gas decreases to 1.3 atm, and the temperature of the gas increases to 285 K.

122 cm3

153 cm3

185 cm3

231 cm3

Keisha finds instructions for a demonstration on gas laws. 1. Place a small marshmallow in a large plastic syringe.2. Cap the syringe tightly.3. Pull the plunger back to double the volume of gas in the syringe.

This is a demonstration of Charles’s law. As the volume increases, the temperature decreases, and the marshmallow will freeze.

This is a demonstration of Charles’s law. As the volume increases, the temperature increases, and the marshmallow will melt.

This is a demonstration of Boyle’s law. As the volume increases, the pressure decreases, and the marshmallow will grow larger.

This is a demonstration of Boyle’s law. As the volume increases, the pressure increases, and the marshmallow will shrink.

Which statement is a description of Boyle’s law?

The temperature and volume of a gas are directly proportional when pressure is constant.

The temperature and volume of a gas are inversely proportional when pressure is constant.

The volume and pressure of a gas are directly proportional when temperature is constant.

The volume and pressure of a gas are inversely proportional when temperature is constant.

At a constant pressure, the volume of a gas doubles when the temperature in kelvins doubles. This is a statement of which gas law?

Boyle’s law

Charles’s law

Gay-Lussac’s law

combined gas law

A gas has an initial volume of 24.6 L at a pressure of 1.90 atm and a temperature of 335 K. The pressure of the gas increases to 3.50 atm, and the volume of the gas increases to 31.3 L.

143 K

231 K

485 K

785 K

Which formula represents Gay-Lussac’s law?

Option

P1V1 = P2V2

P1T1 = P2T2

Loni makes a diagram to help organize what she has learned about the gas laws.

involves changes in temperature

has a constant volume

shows an inversely proportional relationship

does not describe pressure changes

Brenda fills in the table below to organize information about the gas laws. In which numbered cells should she place volume?

2, 3, and 6

1, 4, and 6

1, 3, and 5

2, 4, and 5

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Behavior of Gases Answers

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