The ideal gas equation

Question 1

What is the constant temperature law? (Boyle’s)

Answer 1

the product of pressure and volume is a constant as long as the temp. remains constant

p x v = constant

Question 2

What is the constant pressure law? (Charles’)

Answer 2

the volume is proportional to the temperature as long as the pressure remains constant

v ∝ V and V / T = constant

Question 3

What is the constant volume law? (Gay-Lussac’s)

Answer 3

pressure is proportional to the temperature as long as the volume remains constant

P ∝ T and P / T = constant

Question 4

What does combining these laws give us?

Answer 4

(P x V) / T = constant for a fixed mass of gas

Question 5

What is the ideal gas equation?

Answer 5

P (Pa = N m^-2) x V (m^3) = n x R (J K^-1 mol^-1) x T (K)

PV = nRT

Question 6

What is the gas constant?

Answer 6

R = 8.31 J K^-1 mol^-1

Question 7

What are the units of pressure?

Answer 7

Pa

Question 8

What are the units for volume?

Answer 8

m3