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Honors Gas Review
Test Description: Which gas law to use? Ideal gases Molar Volume Gas stoichiometry
Instructions: Answer all questions to get your test result.
1) PV=nRT is which law?
A
Charles Law
B
Combined Gas Law
C
Ideal gas Law
D
Gay-Lussac's Law
2) Which of the following is NOT a unit of measure for pressure
A
psi
B
kPa
C
K
D
atm
3) When you see the word container in a question, which variable is it referring to?
A
Volume
B
constant
C
Pressure
D
Temperature
4) STP stands for
A
Standard temperature and pressure. O degreees celsius and 1 kPa of pressure
B
standard temperature and pressure 273 celsius and 1 atm
C
Standard temperature and pressure. 0 degrees celsius and 1 atm of pressure
D
standard temperature and pressure. 0 Kelvin and 10 atm
5) How much volume would 55.0 grams of the gas Xenon (Xe) take up at STP?
A
0.419 L
B
8.96 L
C
8.96 mL
D
1.232 L
6) 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
you cannot solve this equation
C
2.93 mL
D
cross multiply and divide
7) If you double the temperature of a gas, the pressure would
A
stay the same
B
double
C
decrease
D
cut in half
8) PV=nRT is the Ideal Gas law. What does the n stand for?
A
Ideal gas constant
B
rate
C
22.4
D
moles of gas
9) The value of R when using atm pressure units is
A
62.4
B
8.314
C
0.0821
D
22.4
10) 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
2.0 L
B
0.58 mL
C
0.58 L
D
0.93 L
11) 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
214 Kelvin
B
487 Kelvin
C
214 degrees celsius
D
40 degrees celsius
12) P= 1 atm, V=400mL, T = 54 degrees celsius. What is the value of n?
A
0.0821
B
0.0149
C
22.4
D
0
13) Real gases do not act like ideal gases under these conditions
A
extremely high volumes
B
extreme cold and extremely high pressure
C
extremely high heat and extremely low pressure
D
extremely high heat
14) The coefficients in the balanced chemical equation represent
A
mole ratio
B
all of the above
C
volume ratio
D
the smallest unit of the reaction taking place
15) The formula for going from Kelvin to Celsius is
A
K + 273
B
K - 273
C
K = 273
D
C - 273
16) How do you go from grams to moles of the same substance?
A
divide by 22.4
B
divide by 6.02 x 10^23
C
use the molar volume
D
Use the molar mass
17) True or False: You can only use the ideal gas law if you know at 4/5 variables
A
False- you only need to know 2
B
true
C
False- all you need to know is the value of R
D
False- you only need to know 3
18) 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
19) Where can you find resources to help you on your assignments in Ms. Golden's class?
A
Textbook assignment page
B
ask a friend, Ms. Golden, or send a canvas message
C
All of the above
D
Modules - unit 12 - resources for extra help
20) When using the Ideal gas law
A
Volume must be in LITERS and temperature must be in Kelvin
B
Pressure must be in kPa, temperature must be in Kelvin
C
Temperature must be in Kelvin and pressure must be in atm
D
Pressure must be in atm, volume must be in Liters, and temperature must be in kelvin
*select an answer for all questions
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