Gas Laws

What volume does .0685 mol of gas occupy at STP?

• .3707 mol
• .7515 mol
• 1.53 L 
• 3.06 L

Which law describes that the total pressure equals the sum of the partial pressures?

• Charles
• Boyles
• Daltons
• Ideal

What quantity of gas, in moles, is contained in 2.21 L at STP?

• .0454 mol
• .0987 mol
• .1974 mol
• .2948 mol

A sample of oxygen gas has a volume of 150.0 mL when its pressure is .947 atm. What will the volume of the gas be if it is lowered to a pressure of 0.658 atm and the temperature remains constant?

• 72 mL
• 144 mL
• 216 mL
• 288 mL

According to Charles’s law, the volume of a gas is inversely proportional to its pressure at constant temperature.

• true
• false

The standard molar volume of a gas is 44.2 L.

• true
• false

For a fixed amount of gas, a change in one variable (pressure, temperature or volume) affects the other two.

• true
• false

A mole is the unit used to measure the amount of an given substance. 

• true
• false

Tags

NGSS.HS-PS1-7

When using Charles’s law, temperature must be expressed in degrees Kelvin.

• true
• false

A relationship in which one variable increases as the other variable decreases is an inverse relationship.

• true
• false