Gas Chapter Test

The random molecular motion of a substance is greatest when the substance is

• condensed
• frozen
• gas
• a liquid

Tags

NGSS.MS-PS1-4

A gas that obeys all the assumptions of the kinetic–molecular theory is called

• ideal gas

• kinetic gas

• cool gas

• certain gas

The force per unit area pushing against a surface

• atmospheric pressure (atm)

• liters (L)

• pressure (P)

• kelvin (K)

A gas has an initial volume of 685 mL and an initial temperature of 29°C. What is its new temperature if volume is changed to 1.006 L? Assume pressure and amount are held constant.

• 444 K

• 36 C

• 141 K

• 444 C

What is the total pressure of a gas mixture containing these partial pressures: PN2=0.78 atm, PH2=0.33 atm, and PO2=1.59 atm?

• 2.70 atm

• 2.50 atm

• 3.55 atm

• 3.60 atm

In the ideal gas law, which of these is a constant?

• P

• T

• n

• R

A 0.0555 mol sample of Kr has a temperature of 188°C and a volume of 0.577 L. What pressure does it have?

• 8.64 atm

• 5.45 atm

• 3.64 atm

• 364 atm

Matter with no definite volume and no definite shape is a ___________.

• gas
• liquid
• plasma
• solid

Tags

NGSS.MS-PS1-4

As a sample of matter is heated, its particles ______________.

• are unaffected
• move more quickly
• move more slowly
• stop moving

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the value of STP?

• 0 K and 1 atmosphere

• 0 C and 1 atmosphere

• 32 F and 1 atmosphere

• 100 C and 1 atmosphere