Chm 1 Gases Unit Test Review Question Preview (ID: 58969)


Molar Volume Combined Gas Law Boyles Charles Gay-Lussacs Ideal Gases Behavior. TEACHERS: click here for quick copy question ID numbers.

How do you convert from Celsius to Kelvin?
a) + 273
b) - 273
c) x 273
d) x 1000

The SI unit for temperature is
a) Kelvin
b) Celsius
c) Farenheight
d) Bananas

STP stands for
a) Standard temperature and pressure. 0 degrees celsius and 1 atm.
b) Standard temperature and pressure. 100 degrees celsius and 10 atm
c) Standard testing and pressure. 0 degrees Kelvin and 1 atm
d) Standard temperature and pressure. 0 degrees Kelvin and 1 atm

Which of the following is the largest volume
a) 10 L
b) 100 mL
c) 10 mL
d) 1.0 L

Pressure and Volume and inversely related. This means that
a) As pressure goes down, volume goes up
b) as pressure goes up volume goes up
c) as pressure goes down volume goes down
d) as volume goes down, temperature goes up

A mole of gas occupies ________L at STP
a) 22.4 L
b) 224 L
c) 22.4 mL
d) 224 mL

If you double the temperature of a gas, what will happen to the volume of the same gas? (assuming pressure is kept constant)
a) the volume doubles
b) the volume stays the same
c) the pressure is cut in half
d) the volume is cut in half

Determine the mass in grams of 5.8 L of Helium gas (He)
a) 1.06 g He
b) 519 g He
c) 0.0647 g He
d) 4.00 g He

If you are given pressure, temperature, and volume in a problem, which gas law do you use?
a) Combined
b) Gay-Lussac's
c) Boyle's
d) Charles

The volume of a gas is 0.50 L at 1 atm and at 400 K. If the temperature is decreased by half and the pressure stays the same, what is the new volume?
a) 0.25 L
b) 1 L
c) 0.5 L
d) 0.25 mL

A gas occupies 4.0 L of space at 5.0 atm. What would the pressure be if the new volume was 1.5 L?
a) 13.3 atm
b) 20 atm
c) 2.5 atm
d) 30 atm

What size container would 5.5 grams of Argon (Ar) need at STP?
a) 3.08 L
b) 0.00614 L
c) 6.14 mL
d) 3.08 mL

At 350 K a gas is at a pressure of 8.0 kPa. If the pressure is doubled, what is the new temperature?
a) 700 K
b) 700 Celsius
c) 1
d) 175 K

Pressure and Temperature are
a) directly proportional (directly related)
b) inversely related
c) the same
d) measured by kPa

at 50 degrees celsius a gas occupies a volume of 3.0 L. If the volume is decreased to 2.0 L, what is the new temperature in degrees celsius?
a) negative 58.3 celsius
b) 58.3 celsius
c) 215 K
d) negative 215 K

True or False: You can have negative numbers for temperature using Kelvin and Celsius scales
a) False. You cannot have a negative Kelvin number, but you can have a negative Celsius number
b) True
c) False. You cannot have a negative number for Kelvin or Celsius
d) False, you cannot have a negative number for Celsius, but you can have a negative number for Kelvin

If you increase temperature, what happens to pressure?
a) It increases
b) It decreases
c) It doubles
d) it does not change

Which statement DOES NOT describe an Ideal Gas
a) Particles take up space
b) Particles take up no space
c) In constant, random motion
d) Has no intermolecular attractive forces

Real gases do not behave like ideal gases under which conditions?
a) extremely high pressure and extremely low temperatures
b) extremely high temperatures and extremely low pressures
c) extremely high volumes
d) Very low pressure

Absolute Zero, or Zero Kelvin, describes a theoretical temperature at which
a) particles stop moving
b) particles move quickly
c) potential energy disappears
d) kinetic energy disappears

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