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Avogadro and Ideal Gas Laws

Total questions: 10

Worksheet time: 13mins

Name
Class
Date
1.
Which law helps us find the moles of gas in a sample?
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
2.
Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.
a)
7.18 L 
b)
7.81 L
c)
4.63 L
d)
4.36 L
3.

What does R stand for

a)

Ideal gas constant

b)

Real gas constant

c)

Temperature constant

d)

Ideal gas law

4.
What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
PV=nRT
a)
14.19 atm
b)
16.53 atm
c)
18.42 atm
d)
22.54 atm
5.

6. In order to solve gas law calculations, temperature must be measured in:

a)

Celsius

b)

Fahrenheit

c)

Kelvin

d)

It doesn't matter

6.

Explain the significance of Avogadro's law in understanding the behavior of gases.

a)

Avogadro's law states that the temperature of a gas is directly proportional to its volume.

b)

Avogadro's law explains the relationship between the mass of a gas and its volume.

c)

Avogadro's law is used to calculate the pressure of a gas.

d)

Avogadro's law helps us understand the relationship between the volume of a gas and the number of particles it contains.

7.

What are the assumptions made in Avogadro's law?

a)

Equal volumes of gases contain different number of molecules at constant temperature and pressure.

b)

Equal volumes of gases contain an equal number of atoms at constant temperature and pressure.

c)

Equal volumes of gases contain an equal number of molecules at varying temperature and pressure.

d)

Equal volumes of gases contain an equal number of molecules at constant temperature and pressure.

8.

What is the relationship between the volume and the number of moles of a gas according to Avogadro's law?

a)

Unrelated

b)

Depends on temperature

c)

Directly proportional

d)

Inversely proportional

9.

State the mathematical expression of Avogadro's law.

a)

V1 - n1 = V2 - n2

b)

V1 + n1 = V2 + n2

c)

V1 / n1 = V2 / n2

d)

V1 * n1 = V2 * n2

10.
How many molecules are there in a 110 L sample of gas at STP?
a)
8 x 1023 molecules
b)
8 x 1024  molecules
c)
3 x 1024 molecules
d)
3 x 1023 molecules