1. Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can be expressed in Celsius (°C) and Fahrenheit(°F). So, convert 123°C to K.
A.
396K
B.
486K
C.
369K
D.
458K
E.
693K

2. As the volume of confined gas decreases at the constant temperature, the pressure exerted by the gas ______.
A.
Decreases
B.
Increases
C.
Stay the same
D.
Fluctuates

3. Organize the following gasses in order of their rates of diffusion, from slowest to fastest
oxygen, O2
ammonia, NH3
hydrogen, H2
carbon dioxide, CO2
A.
Hydrogen, oxygen, carbon dioxide, ammonia
B.
Oxygen, hydrogen, carbon dioxide, ammonia
C.
Hydrogen, ammonia, oxygen, carbon dioxide
D.
Hydrogen, oxygen, ammonia, carbon dioxide
E.
Carbon dioxide, oxygen, ammonia, hydrogen

4. Air trapped inside a single-piston-cylinder exerts a pressure of 760 mmHg. If its volume is increased by 20% at a constant temperature, the pressure exerted would be equal to


A.533 mmHg
B. 544 mmHg
C. 584 mmHg
D. 633 mmHg

5. If air at a pressure of 2 MPa is compressed such that the new volume of the air is one eighth of its initial volume, then the new pressure of the air is

A. 0.25 M Pa
B. 2 M Pa
C. 8 M Pa
D. 16 M Pa

6. Gas pressure is caused by:
A.
Gas molecules heating up
B.
Gas molecules reacting with other gas molecules
C.
Gas molecules hitting the walls of a container
D.
Gas molecules hitting other gas molecules

7.
At constant pressure and 25°C, a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
A.
596K
B.
50K
C.
50°C
D.
596°C

8. : If Pressure of a fixed amount of gas is denoted as 'P' and volume is denoted as 'V' then Boyles law can be expressed as

A. P = k × V (where 'k' is a proportionality constant)
B. P = k ⁄ V (where 'k' is a proportionality constant)
C. P = k × V² (where 'k' is a proportionality constant)
D. P = k ⁄ V² (where 'k' is a proportionality constant)

9. A flask contains 0.50 mole of SO2(g), 1.50 mole of CH4(g) and 1.0mole of O2(g). The total pressure of the gases in the flask is 1000mmHg. Which is closest to the partial pressure of the O2 (g) in the flask?

a) 800 mmHg
b) 667 mmHg
c) 500 mmHg
d) 333 mmHg
e) 160 mmHg

10. What volume of O2(g) is required to react with excess CS2(l) to produce 10.0L of CO2(g)? (Assume all gases are measured at 0˚C and 1atm.)

a) 30L
b) 10L
c) 1/3 x 22.4L
d) 2 x 22.4L
e) 10 x 22.4L

11. A gas is heated from 23.000 degrees Celsius to 127.0 degrees Celsius at a constant pressure of 10.00 atm. If the initial volume is V, which equation will best identify the new volume?
a) (20/123) ×V
b) (123/20) ×V
c) (296/400) ×V
d) (400/296) ×V
e) none of these

12. Which assumption is part of the kinetic molecular theory?
a) the particles in a gas have a distinct volume measured in mL
b) the particles in a gas attract one another via intermolecular forces
c) the particles in a gas collide and emit energy to the surroundings
d) the speed of the particles in a gas is directly proportional to the Kelvin temperature
e) the particles in a gas can be compressed

13. Solids have

A. fixed shape, fixed volume, low density and are incompressible
B. ixed shape, fixed volume, high density and are incompressible
C. fixed shape, fixed volume, low density and are compressible
D. fixed shape, fixed volume, high density and are compressible

14. For a substance that remains a gas under the conditions listed, deviation from the ideal gas law would be most pronounced at

A)-100 C and 5.0 atm
B) -100 C and 1.0 atm
C) 0 C and 1.0 atm
D) 100 C and 1.0 atm
E) 100 C and 5.0 atm

15. A gas mixture contains 2.0 moles of helium and 8.0 moles of carbon dioxide and is held under conditions of standard temperature and pressure. What is the partial pressure of the carbon dioxide?
a) 2.0atm b) 0.2atm c) 8.0atm d) 0.8 atm e) none of thesethese

16. The temperature of a fixed mass of gas in a rigid container is decreased from 127.00 degrees Celsius to 27.0 degrees Celsius. The initial pressure was 1000. mmHg. Which is closest to the new pressure, in mmHg, after cooling?
a) 250 b) 500 c) 750 d) 900 e) 1330


More here- https://www.talkpalsforum.com/index.php?topic=109.msg152#new

What's the prize? Majority of the questions aren't difficult. But i need to know if it's worth calculating.

Answers 1 A 2 B 3 E 4 D 5 D 6 C 7 A 8 B 9 D 10 A 11 D 12 D 13 B 14 A 15 D 16 C

samwise180:
Answers
1 A
2 B
3 E
4 D
5 D
6 C
7 A
8 B
9 D
10 A
11 D
12 D
13 B
14 A
15 D
16 C

.

OK I will mark boss

Dew04:
What's the prize? Majority of the questions aren't difficult. But i need to know if it's worth calculating.

.


Boss come help us ooo

Eyinjuoluwanimi:
.
OK I will mark boss

Alright boss I will be anticipating.