Forget To Eat

1. Which is correct about solid particles?
a. The particles are widely separated and far from each other.
b. The particles are arranged in a regular pattern
c. The particles slide or move fast over each other.
d. The particles move fast as there are more available spaces.

2. Which of the following statements describes the pressure of a gas
in a container?
a. The volume of the gas in the container
b. The number of gas particles in a container
c. The force exerted by the gas particles in the container
d. The value of pressure is 760 mmHg

3. Which is correct about gases?
a. Gases take the volume and shape of the container
b. Gases have high density volume
c. Gases have high density and incompressiblity
d. Gases have definite volume but take the shape of the container

4. What happens to a gas at 0 K ?
a. The molecules disappear
b. The molecules stop moving
c. The molecules divide
d. The molecules stick to each other.

5. The property of gas to decrease in volume as pressure increases is
called
a. Diffusion
b. Compressibility
c. Pressurized
d. Transpiration

6. Air is pumped into a bicyle tire. Which of the following does not
happen?
a. The space between the molecules decreases.
b. The gas molecules collide more frequently
c. The gas molecules move faster
d. The gas density increases

7. A balloon filled with helium is allowed to float in a higher altitude
where the outside pressure is lower. The change is at constant
temperature. Which of these will happen to the new volume of the
balloon?
a. Remains the same
b. Shrink
c. Expand
d. Burst


8. An aerosol can with pressure of 4.0 atm and a temperature at 27
°C is thrown into a campfire. The temperature of the can reaches
400 °C and the pressure inside it exceeds 8 atm. What do you
expect would happen?
a. If the temperature increases, the pressure of the can also
increases; the can will explode
b. If the pressure decreases, the temperature of the can also
decreases; the can will not explode
c. If the temperature increases, the pressure of the can decreases;
the can will only shrink
d. If the temperature increases, the pressure of the can decreases;
the can will expand only.

9. Freon in an air-conditioning unit has a volume of 0.30 liter. It is
allowed to function in a room temperature, where the pressure is
about 625 mmHg. Assuming that the temperature remains
constant, what is the final pressure of freon when its volume is
increased to 1.0 liter?
a. 187.5 mmHg
b. 54.6 mmHg
c. 873 mmHg
d. 456 mmHg

10. An aerosol contains 0.452 liters of gas at 22 °C. what is the final volume
of the gas at constant pressure if the temperature is increased to 187 °C?

a. 0.567 L
b. 0.705 L
c. 0.786 L
d. 0.892 L

11.In the equation of combined gas law the V1 stands for _____
a.New volume
b.Initial volume
c. Final volume
d.The difference of the initial volume and final volume

12.It is summer you bought a dozen of helium balloons for the party. Some
of the balloon burst while in the tricycle. You can attribute this
occurrence to what law of gases?
a. Boyle’s Law c. Gay-Lussac’s Law
b. Charle’s Law d. Combined Gas Law

13.The pressure and volume of a gas are indirectly proportional to each
other but are both directly proportional to the tempersture of the gas.
This is ___________.
a.Boyle’s Law c. Gay-Lussac Law
b.Charle’s Law d. Combined Gas Law

14.In an experiment Mae used a sample of 3 L hydrogen gas at 30 C and 1
atm. What will be the new volume of the gas at 48 C and 1.5 atm?
a.1.0 L c. 3.0 L
b.2.1 L d. 4.2 L

15.Dr. Zues investigated a balloon of 20 mL at 30 C and submerged in hot
water of 50 C. which would likely happen to the volume of the balloon if
pressure is kept constant. The volume of the balloon will become----
a.higher then 200 ml
b.lower than 200 mL
c.stay thesame
d.undetermined