Honors Gas Review Question Preview (ID: 58899)


Which Gas Law To Use? Ideal Gases Molar Volume Gas Stoichiometry. TEACHERS: click here for quick copy question ID numbers.

One mole of any gas at STP
a) occupies 22.4 L of space
b) is very hot
c) continues to expand
d) occupies 1 L of space

True or False: You can only use the ideal gas law if you know at 4/5 variables
a) true
b) False- you only need to know 2
c) False- you only need to know 3
d) False- all you need to know is the value of R

The coefficients in the balanced chemical equation represent
a) the smallest unit of the reaction taking place
b) mole ratio
c) volume ratio
d) all of the above

P= 1 atm, V=400mL, T = 54 degrees celsius. What is the value of n?
a) 0
b) 22.4
c) 0.0821
d) 0.0149

Real gases do not act like ideal gases under these conditions
a) extremely high volumes
b) extremely high heat and extremely low pressure
c) extremely high heat
d) extreme cold and extremely high pressure

PV=nRT is the Ideal Gas law. What does the n stand for?
a) moles of gas
b) Ideal gas constant
c) rate
d) 22.4

A gas at 110 kPa and 30 degrees celsius fills a container with a volume of 2.0 liters. If the temperature is raised to 80 degrees celsius and the pressure increases to 440 kPa, what is the new volume?
a) 0.58 L
b) 0.58 mL
c) 2.0 L
d) 0.93 L

A gas in a sealed container as a pressure of 125 kPa at a temperature of 30 degrees celsius. If the pressure of the container increased to 201 kPa, what is the new temperature?
a) 40 degrees celsius
b) 214 Kelvin
c) 214 degrees celsius
d) 487 Kelvin

The value of R when using atm pressure units is
a) 8.314
b) 0.0821
c) 62.4
d) 22.4

If you double the temperature of a gas, the pressure would
a) double
b) decrease
c) cut in half
d) stay the same

STP stands for
a) Standard temperature and pressure. 0 degrees celsius and 1 atm of pressure
b) standard temperature and pressure. 0 Kelvin and 10 atm
c) standard temperature and pressure 273 celsius and 1 atm
d) Standard temperature and pressure. O degreees celsius and 1 kPa of pressure

How much volume would 55.0 grams of the gas Xenon (Xe) take up at STP?
a) 8.96 L
b) 8.96 mL
c) 1.232 L
d) 0.419 L

A gas occupies 2.5 L of volume at 45 degrees celsius and at 3.5 atm. If the temperature is increased to 100 degrees celsius, and the pressure stays the same, what is the new volume?
a) 2.93 L
b) 2.93 mL
c) cross multiply and divide
d) you cannot solve this equation

How do you go from grams to moles of the same substance?
a) divide by 22.4
b) use the molar volume
c) Use the molar mass
d) divide by 6.02 x 10^23

The formula for going from Kelvin to Celsius is
a) K + 273
b) K - 273
c) C - 273
d) K = 273

When you see the word container in a question, which variable is it referring to?
a) Temperature
b) constant
c) Pressure
d) Volume

PV=nRT is which law?
a) Ideal gas Law
b) Charles Law
c) Gay-Lussac's Law
d) Combined Gas Law

Which of the following is NOT a unit of measure for pressure
a) kPa
b) atm
c) K
d) psi

Where can you find resources to help you on your assignments in Ms. Golden's class?
a) ask a friend, Ms. Golden, or send a canvas message
b) Textbook assignment page
c) Modules - unit 12 - resources for extra help
d) All of the above

When using the Ideal gas law
a) Volume must be in LITERS and temperature must be in Kelvin
b) Temperature must be in Kelvin and pressure must be in atm
c) Pressure must be in atm, volume must be in Liters, and temperature must be in kelvin
d) Pressure must be in kPa, temperature must be in Kelvin

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