The specific heat of aluminum is 0.21 cal g°c . how much heat is released when a 10 gram piece of aluminum foil is taken out of the oven and cools from 50 to 10 °c? a) 84 calories b) 290 calories c) 390 calories d) 810 calories

Answer;

A) 84 calories

Explanation;Specific Heat Capacity is the energy, transferred as heat, that is required to raise the temperature of one gram of a substance by one degree Celsius.Quantity of heat = mcΔt; Where m is the mass in kilograms, c is the specific heat capacity and Δt is the change in temperature.

Mass = 10 g, specific heat capacity = 0.21 cal g°C, and Δt = 10 °C

Therefore;

Heat = 10 × 0.21 cal g°C × 40 °C

        = 84 calories