Unit 12: Gases

What is 50 C in Kelvin?

• 223

• 323

• 100

• 50

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase

• Decrease

• Nothing

• Explosion!

What law combines all 3 factors (pressure, temperature, and volume)

• Combined Gas Law

• Charle's Law

• Boyle's Law

• Avagadros Ideal Gas Law

If a nitrogen gas occupies 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?  

• 323.6 ml
• 728.25 ml
• 772.39 ml
• None of the above

What is the equation for Charles' Law?

• P₁V₁=P₂V₂
• V₁/T₁=V₂/T₂
• V₁/n₁=V₂/n₂
• P₁/T₁=P₂/T₂

What is the equation for Boyle's Law?

• P₁V₁=P₂V₂
• V₁/T₁=V₂/T₂
• V₁/n₁=V₂/n₂
• P₁/T₁=P₂/T₂

If 200 mL of a gas at 27°C is cooled to -33°C at a constant pressure, the volume will be

• 250 mL
• 204 mL
• 196 mL
• 160 mL

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol

Gas molecules can easily be compressed  because ___________. 

• gas molecules are soft
• gas molecules are far apart
• gas molecules follow the shape of the container

The energy of an object as it is in motion is defined as

• Kinetic Theory
• Kinetic energy
• Potential energy
• Electric energy

Tags

NGSS.HS-PS3-2