200-kg cast-iron block at 500 o C is quenched in 400 kg of water at 20 o C. What is the amount of heat into water when the system reaches the thermal equilibrium

The heat gained by water is 41,916 kJ

Explanation:

Given;

mass of cast Iron, = 200 kg

mass of water, = 400 kg

initial temperature of the cast iron, = 500 ⁰C

initial temperature of the water, = 20 ⁰C

At thermal equilibrium, the heat lost by the cast iron, is equal to heat gained by the water

The heat gained by water is given by;

Qw = 400 x 4200(44.95 - 20)

Qw = 41916000 J

Qw = 41,916 kJ

Therefore, the heat gained by water is 41,916 kJ

the maxium height is 34m/s