Specific Heat

1
Specific Heat

• If 15.0 g of water at 76C is mixed with 18.0 g
  of water at 4C, what will the final temperature
  of the water be?

2
Specific Heat

• What is the specific heat of a 74.0 g piece of
  metal at 72C that is placed into 100 g of water
  at 23C if the final equilibrium temperature is
  26C?

3
Specific Heat

• What is the mass of copper needed if 49 J of
  energy is required to raise the temperature from
  9C to 90C if the specific heat of copper is
  0.385 J/gC?

4
Heat of Vaporization

• Calculate the amount of heat in Joules required
  to convert 180 g of water at 10C to steam at
  105C.
• Step 1
• Temperature change only (specific heat)
• Step 2
• Phase change only (m ?Hvap )
• Step 3
• Temperature change only ( specific heat)