1)The specific heat of iron is 0.45 J/(goC). How much heat in J is added to a 4.99 g iron nail to raise its temperature from 22oC to 357.4oC?

2)A bowl of 233 g of water is placed in a microwave oven that puts out 811 watts (J/s). How long would it take in seconds to increase the temperature of the water from 12.0oC to 57.0oC? 3)112.9 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 20.7oC. After 463.8 g of an unknown compound at 83.0oC is added, the equilibrium T is 32.4oC. What is the specific heat of the unknown compound in J/(goC)?

4)What is the approximate specific heat in J/(goC) of a metal whose M.W. is 46.4 g/mol?

5)A process takes place at constant pressure. The volume changes and the temperature increases by 63.5^oC. The heat capacity of the system at constant volume, C_V, is 486.8 kJ/^oC. What is ?E in kJ?