The specific heat capacity of iron at 25°C is 4.490×10-1 J/g/K.?

Question

The specific heat capacity of iron at 25°C is 4.490×10-1 J/g/K.?

For a 9.75×102 g sample of iron, how much energy is required to raise the temperature from 20.2°C to 28.8°C?
(Assume that the heat capacity is constant over this temperature range.)
What is the molar heat capacity of iron?

Answer 1

E = cp*m * ∆T; you have cp (specific heat), m and ∆T. Find how many moles 1kg of iron is, and subsitute that for the mass in the formula for cp. You can get that information here http://en.wikipedia.org/wiki/Iron