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QUIZ 5.1 GAS

Total questions: 25

Worksheet time: 33mins

Name
Class
Date
1.
Which of the following statements CORRECTLY explain the kinetic molecular theory of an ideal gas.
a)
The collisions between gas particles are elastic.
b)
The collisions between gas particles are not elastic.
c)
The collisions between gas particles are semi elastic.
d)
The collisions between gas particles are half elastic.
2.
Which of the following graphs represent Charles’ law CORRECTLY.
a)
Option 1
b)
Option 2
c)
Option 3
d)
Option 4
3.
“Total pressure of a mixture of non reacting gases is equal to the sum of the pressures that each gas would have if it were present alone.” The above statement refer to
a)
Boyle’s law
b)

Charles' law

c)
Avogadro’s law
d)
Dalton’s law
4.

According to Charles' law, what happens to the volume of a gas when the temperature increases at constant pressure?

a)

The volume decreases.

b)

The volume remains constant.

c)

The volume increases.

d)

The volume fluctuates.

5.

What is the primary assumption of the ideal gas law regarding gas particles?

a)

Gas particles have significant volume.

b)

Gas particles attract each other.

c)

Gas particles are in constant random motion.

d)

Gas particles do not collide with each other.

6.

What happens to the pressure of a gas when its volume decreases at constant temperature?

a)

The pressure decreases.

b)

The pressure remains constant.

c)

The pressure increases.

d)

The pressure fluctuates.

7.

Which of the following statements is TRUE regarding the behavior of real gases compared to ideal gases at high pressure and low temperature?

a)

Real gases behave more like ideal gases.

b)

Real gases deviate from ideal behavior.

c)

Real gases have no intermolecular forces.

d)

Real gases occupy no volume.

8.

According to Avogadro's law, what is the relationship between the volume of a gas and the number of moles at constant temperature and pressure?

a)

The volume is directly proportional to the number of moles.

b)

The volume is inversely proportional to the number of moles.

c)

The volume is independent of the number of moles.

d)

The volume is equal to the number of moles.

9.

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

10.

Which container will have a lower pressure exerted by gas particles?

a)

left container

b)

right container

c)

they both have the same pressure

d)

I don't know

11.

Choose the correct statement

a)

this is a graph representing Boyle's law

b)

this is a graph representing Charles' law

12.

A relationship between volume of gas with the number of mole of gas at constant Temperature and Pressure describes the gas law of

a)

Boyle's

b)

Charles'

c)

Avogadro's

13.

In CHARLES' LAW, at constant pressure, what happens to temperature of a gas when the volume doubles?

a)

The temperature also doubles.

b)

The temperature decreases to half of its original volume.

c)

The temperature doesn't change.

d)

The temperature quadruples.

14.
Gases have...
a)
A definite shape and volume
b)
A definite shape but no definite volume
c)
No definite shape but a definite volume
d)
No definite shape or volume
15.
PV=nRT
a)

Charles' Law

b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
16.

What does R stand for

a)

Ideal gas constant

b)

Real gas constant

c)

Temperature constant

d)

Ideal gas law

17.

Choose the INCORRECT statement.

a)

Boyle 's Law states that the volume of the gas is directly proportional to its pressure

b)

Kinetic theory of gases postulates that the volume of the gas particle is too small hence it can be ignored.

c)

Larger value of a, in the van der Waals equation for a real gas, indicates a stronger attractive force between gas molecules.

18.

A sample of CO2 gas occupied 3.0 L at 35°C and 1 atm. What is the new volume if the temperature and pressure are changed to 48°C and 1.5 atm respectively. (Hint: Combined Boyle's and Charles' laws)

a)

1.9 L

b)

2.1 L

c)

3.4 L

d)

4.3 L

19.

A gas behaves ideally at

a)

low temperature and pressure

b)

low temperature and high pressure

c)

high temperature and low pressure

d)

standard temperature and pressure

20.

If 1.50 moles of nitrogen gas are contained in a 5.0 L vessel at 300 K, what is the pressure of the nitrogen gas?

a)

14.10 atm

b)

7.39 atm

c)

0.00739 atm

d)

73.90 atm

21.

Which of the following statements about the Kinetic Molecular Theory of Gases is/are TRUE?

I. Volume of gas molecules is not negligible

II. Intermolecular forces between the gas molecules are negligible

III. The total kinetic energy of the gas molecules remain unchanged as the collide and bounce off one another

a)

I only

b)

I and II

c)

II and III

d)

I, II and III

22.

What is the equation for Avogadro’s law?

a)

b)

c)

d)

23.

Which of the following laws describes the graph below?

a)

Charles’ law

b)

Boyle’s law

c)

Avogadro’s law

d)

Ideal Gas law

24.

According to Boyle's Law, what happens to the pressure of a gas when its volume is halved at constant temperature?

a)

The pressure decreases.

b)

The pressure remains constant.

c)

The pressure doubles.

d)

The pressure quadruples.

25.

In a mixture of ideal gases of volume, V and temperature, T, what is the pressure exerted by each individual gas if it occupies the total volume, V alone at temperature, T called?

a)

Total pressure.

b)

Partial pressure.

c)

Divided pressure.

d)

Individual pressure.