We use two R values: 0.0821 and 8.314. How do you know which to use for a problem?
Ideal Gas Law

Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Eric Robinson
Used 368+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The units for pressure
The units for temperature
The units of volume
The amount of moles
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
In the following, what is the unknown variable:
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?
P
V
n
T
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
In the following, what will be the value for R:
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?
0.0821 L⋅atm∕mol⋅K
8.314 L⋅kPa∕mol⋅K
293 K
1.2 atm
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following variables is NOT correctly matched with its value for this problem:
What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20⁰C?
V = 4.2 L
R = 0.0821 L⋅atm∕mol⋅K
n = 0.023 mol
P = 20⁰C
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve the following problem:
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?
106.55 K
53.3 L
293 K
64.15 L
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the correct value for T in the following problem:
What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20⁰C?
T = 0.23 K
T = 293 K
T = 4.2⁰C
T = 20⁰C
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve the following probem:
What pressure is required to contain 0.23 moles of nitrogen gas in a 4.2 L container at a temperature of 20⁰C?
1.32 atm
0.048 atm
2.49 atm
19.32 atm
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