Question

3.5 kJ of heat are added to a 3.4 kg block of ice at temperature of -7.6oC. Suppose the amount of heat added to the ice block is doubled. By what factor must the mass of the ice be increased if the system is to have the same final temperature?

Answer 1

Answer:

  2

Explanation:

If the energy is doubled, the mass must be doubled (increased by a factor of 2) in order for the temperature effect to remain the same.

Heat capacity is measured in units of J/(kg·°C), so the ratio will remain constant if mass varies directly with amount of heat.