Explain how much heat has to be added to 40 g of iron at 25.0 Celsius to raise the temperature of the iron to 250.0 Celsius? IF the Heat capacity of iron is 0.107 cal/(g C)
1) 1.070 kcal and the heat change of the iron is positive
2) 107 cal and the heat change of the iron is negative
3) 963 cal and the heat change of the iron is negative
4) 107 cal and the heat change of the iron is positive
5) 963 cal and the heat change of the iron is positive