Ideal Gases

Question 1

What is the ideal gas equation?

Answer 1

PV=nRT

Question 2

What is the value and units of the gas constant, R?

Answer 2

8.31 Jmol^-1K^-1

Question 3

What are the units of pressure and volume?

Answer 3

Pressure- Pa

Volume- M^3

Question 4

What is Charles’ Law?

Answer 4

V α T

Question 5

What is Boyle’s Law?

Answer 5

PV = Constant

Question 6

What relationship exists between Pressure and Temperature at constant Volume?

Answer 6

P α T

Question 7

Define the mole?

Answer 7

One mole of a substance is the amount of substance which contains the same number of particles as there are in 12g of C12

Question 8

What is the value and units of the Avogadro constant?

Answer 8

6.02 x10^23 mol^-1

Question 9

Theoretically, what volume would a gas take up at 0K?

Answer 9

0 M^3

Question 10

Why do Gases no longer follow the Ideal gas laws at very low temperatures?

Answer 10

They begin to condense to form liquids

Question 11

Define each term in PV=NkT

Answer 11

P- Pressure
V- Volume
N- Number of Particles
k- Boltzmann Constant
T- Temperature

Question 12

What is the value and units of the Boltzmann Constant?

Answer 12

1.38 x10^-23 JK^-1

Question 13

How are the Boltzmann (k) and Gas (R) constants related?

Answer 13

k x Avogadro’s constant = R