Aim How do we differentiate between heat of

Aim: How do we differentiate between heat of fusion and heat of vaporization? Do now: Calculate the heat energy for water at 60 g that goes from 50 C to 140 C.

Heat of Vaporization • The amount of heat needed to convert a unit mass of a substance from a liquid to a vapor at its boiling point. • Q = m * heat of vaporization • Q = energy in joules • M= mass of an object

How many joules of energy are required to vaporize 423 g of water at 100 C and 1 atm?

1. How many joules of energy are required to vaporize 600 kg of water at 100 C and 1 atm?

2. How many joules of energy are required to vaporize 167 g of water at 100 C and 1 atm?

3. How many joules of energy are required to vaporize 423 kg of water at 100 C and 1 atm?

Heat of fusion • The amount of heat needed to convert a unit of a substance from a solid to a liquid at its melting point. • Q= m*heat of fusion • Q= heat energy • M= mass of the substance

How many joules are required to melt 255 g of ice at 0 C?

1. How many joules are required to melt 255 kg of ice at 0 C?

2. How many joules are required to melt 45 g of ice at 0 C?

3. How many joules are required to melt 877 g of ice at 0 C?

EXIT SLIP (COLLECTED) • 1). How many joules are required to melt 25 g of ice at 0 C? • 2). How many joules of energy are required to vaporize 23 kg of water at 100 C and 1 atm?