Gas Laws Chapter 14.2

1. A gas at 110 kPa and 30.0 degrees C fills a balloon with an initial volume of 2.00 L. If the temperature rises to 80.0 degrees C and the pressure increases to 440 kPa, what is the new volume?

.44 L
.23 L
.18 L
.66 L
.58L

2. Equal volumes of gases at the same temperature and pressure contain equal numbers of particles is known as:

Dalton's Law
Boyle's Law
Avogadro's Principle
Gay-Lussac's Law
None of the above.

3. The volume of any gas at STP is always:

22.4 L
11.2 L
.445 L
.44.4 L
None of the above.

4. Calculate the volume that .881 moles of a gas will have at STP:

19.1 L
17.6 L
.331 L
19.7 L
None of the above.

5. Calculate the volume that 2000 g of methane gas (CH4) will have at STP:

2800 L
1400 L
1327 L
342 L
None of the above.

6. What variable is assumed to be constant when using the Combined Gas Law?

volume
pressure
temperature
# of moles

7. Which one of the following is NOT used to make the Combined Gas Law?

Boyle's Law
Dalton's Law
Gay-Lussac's Law
Charle's Law

8. Why does Avogadro's principle hold true for gases that have large particles as well as for small particles?

Gas particles move so quickly that it doesn't make any difference what the mass is.
Gas particles are so far apart and the temperature is always constant that the mass doesn't matter.
The size of any gas particle is so small compared to the volume of the gas, so it is assumed that the gas particles doesn't have any volume of its own.
The ratio of the molar volume to pressure is always equal to 1.

9. What does STP stand for?

Simple temperature and pascal
Simple time and pressure.
Standard time and pressure.
Standard temperature and pressure.

10. Let's say you are going to take a trip on an unpressurized airplane. If you take aboard an air-filled pillow that you have fully inflated, what will happen when you try to use the pillow when the plane is at 35,000 feet?

The pillow will explode.
The pillow will be almost flat.
There will be no change in the pillow size.