PChem

Question 1

Boyle’s Law

Answer 1

pV = constant, at constant n, T

Question 2

Charles’s Law

Answer 2

V = constant•T, at constant n, p

p = constant•T, at constant n, V

Raising the T increases the speed of the molecules, thus more collisions with the walls occur.

Question 3

Avogadro’s Principal

Answer 3

V = constant•n, at constant T, p

Question 4

Molecular explanation of Boyle’s Law

Answer 4

When the V is reduced by 50% the number of molecular collisions doubles, thus the force exerted by the gas on the walls of the container doubles

Question 5

Molecular explanation of Charles’s Law

Answer 5

Raising the T of a gas increases the average speed of the molecules.

Therefore they collide with the walls more frequently and with a greater impact.

Question 6

Hess’s Law

Answer 6

The standard reaction enthalpy is the sum of the values for the individual reactions into which the overall reaction may be divided