summative test (gas laws)

```a. increases
b. decreases
SUMMATIVE TEST IN SCIENCE 10
(GAS LAWS)
NAME: ________________________________
SECTION: ______________________________
Directions: Read and analyze the following statements. Write
1. Which of the following statements correctly defines Boyle’s
Law?
a. As the temperature increases, volume decreases at
constant pressure.
b. As the pressure increases, volume decrease at constant
temperature.
c. As the temperature increases, volume increases at
constant pressure.
d. As the pressure increases, volume increases at constant
temperature
2. Hanna can still pump air in the party balloon even though it
is already inflated. What explains this phenomenon?
A. balloon look better if its size is bigger
B. balloons are made up of plastic
C. the air inside the balloon is hot
D. air molecules can be compressed
3. Last summer vacation, the Cruz family decided to go to
Pagudpod, Ilocos Norte to have a beach party. On their way
to Ilocos, all of them were surprised when the tire suddenly
exploded. What is the probable explanation for the blown out
tire during a long summer drive?
a. High temperature causes a decrease in volume.
b. The amount of the gases inside the tire is increased.
c. The mass of the gases inside the tire increases causing a
blown up tire.
d. The volume of gases increases as the temperature
increases, causing a blown up tire.
c. remains the same
d. fluctuates
9. Volume is inversely proportional to pressure at constant
temperature. What happens to the pressure of a gas when
the volume increases?
a. increases
c. remains the same
b. decreases
d. fluctuates
10. Why does the pressure build up in a tire on a hot day?
(assume that tire volume is constant)
a. As temperature increases, kinetic energy increases.
b. As temperature increases, kinetic energy decreases.
c. As temperature increases, pressure increases.
d. both a and c.
11. Which of the following properties does NOT describe a
gas?
a. pressure
c. temperature
b. volume
d. ductility
12. The helium of a gas in a balloon has a pressure of 735 mm
Hg. Which of the following units of pressure is correct?
a. 0.967 atm
c.735 cm
b. 760 torr
d. 1.03 atm
13. What pressure must be applied to 225 ml of gas at 1 atm
to reduce its volume to 100 ml?
a. 0.44 atm
c. 22500 atm
b. 2.25 atm
d. 1710 atm
14. To what Celsius temperature must 580 ml of oxygen at
17&deg;C be raised to increase its volume to 700 ml?
a. 77&deg; C
c. 240&deg;C
b. 350&deg; C
d. 20.5&deg;C
15. Which one of the following does not signify normal
atmospheric pressure?
a. 760 mm Hg
c. 2 atm
b. 760 torr
d. 76 cm Hg
4. If the pressure is doubled and its temperature remains
constant, what happens to the volume of a confined gas?
a. Volume will increase.
b. Volume will decrease.
c. Volume will remain the same.
d. All of the above.
16. What is most likely to happen when an aerosol can is
heated?
a. it will be deformed
b. it will stay the same
c. it will eventually explode
d. it will tarnish
5. A sample of oxygen gas has a volume of 8.0L and a
pressure of 1.0 atm. What is the new pressure if the volume
is decreased to 2.0 L?
a. 1.0 atm
c. 3.0 atm
b. 2.0 atm
d. 4.0 atm
17. Which of the following samples is highly compressible at
high pressure and expandable at high temperature?
a. oxygen gas
c. water
b. aluminum sheet
d. ice
6. Which of the following gas laws best illustrate that at
constant temperature, the pressure and volume of a gas are
inversely proportional?
a. Charles’ law
c. Boyle’s law
b. Gay- Lussac’s law
d. Combined gas law
7. All of the following is true of gas molecules except:
a. They show no attraction for one another.
b. They have elastic collisions.
c. They move in straight line paths.
d. They have the same average kinetic energy at different
temperatures.
8. Volume is directly proportional to Kelvin temperature at
constant pressure. What happens to temperature when the
volume changes from 75 to 50 ml?W
18. Gab wants to have a portable oxygen tank. A 5 liter
oxygen gas exerts a pressure of 1 atm. How much pressure is
needed for this gas to be compressed in a 2 liter cylinder
provided there is no temperature change?
a. 3 atm b. 2. 5 atm c. 2 atm d. 1.5 atm
19. Given the equation P1V1 = P2V2, which of the following
is the formula for final pressure?
A. P2 = P2V2/V1
c. P2 = P1V1* V2
b. P2 = P1V1/V2
d. P2 = V2/P1V1
20. If the pressure is doubled and its temperature remains
constant, what happens to the volume of a confined gas?
a. Volume will increase.
b. Volume will decrease.
c. Volume will remain the same.
d. All of the above.
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