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Gas Laws

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Suppose the temperature of the air in a balloon is increased. If the pressure stays the same, what must change?
a.
volume
c.
number of molecules
b.
adhesion
d.
compressibility
 

 2. 

If 10.7 liters of a gas at 35oC has its temperature increased to 50oC, what is the new volume?
a.
11.2 L
b.
7.30 L
c.
15.9 L
d.
10.2 L
 

 3. 

A 15.0 liter gas sample is heated from 29oC to 67oC at constant pressure conditions. Under these conditions, which of the following statements is correct?
a.
the number of moles of gas decreases
b.
the number of moles of gas increases
c.
the volume increases
d.
the volume decreases
e.
none of the above are correct
 

 4. 

A sample of CO2 gas occupies 3.0 L at 35oC and 1.0 atm. What is the new volume if the temperature is changed to 48oC and the pressure is changed to 1.5 atm?
a.
1.9 L
b.
2.1 L
c.
3.0 L
d.
4.3 L
e.
4.7 L
 



 
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