Unit 2: Gas Laws

Convert 534 mmHg to kPa

• 71.2kpa
• 4006
• 48.2
• 285.3

What is 935mmHg in atm

• 1.23
• 0.812
• 7.50
• 9.23

Pressure is

• defined as the mass that an object exerts when at rest

• measured in Newtons

• defined as the number of moles of substance divided by the mass of the substance

• defined as the force per unit area

• measured in grams

A gas sample is held at constant pressure. The gas occupies 3.62 L of volume when the temperature is 21.6°C. Determine the temperature at which the volume of the gas is 3.42 L.

• 312K

• 278K

• 20.4K

• 295K

• 552K

A balloon has a volume of 2.32 liters at 24.0°C. The balloon is heated to 48.0°C. Calculate the new volume of the balloon.

• 2.32L

• 2.51L

• 2.15L

• 4.64L

• 1.16L

Gas pressure is caused by

• gas molecules colliding with surfaces
• gas molecules condensing to a liquid
• gas molecules hitting other gas molecule
• barometers

Tags

NGSS.MS-PS2-1

Of these three states of matter, which one has the most kinetic energy? 

• Solid 
• Liquid 
• Gas

Tags

NGSS.HS-PS3-2

Convert 27 C to K

• 300
• 301
• 305
• 368

What is Diffusion?

• The movement of a substance from higher concentration to a lower concentration
• The passage of a gas through a tiny hole into an evacuated chamber

Gases are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume