How many degrees will 2kg of water heat up if you give it 50.4kJ of heat?

Given:

m = 2 kilograms is the mass of water;

Q = 50.4 kJ = 50400 Joules – the amount of heat that was imparted to the water;

c = 4200 J / (kg * C) – specific heat of water.

It is required to determine dt (degree Celsius) – how many degrees the water will be heated if it is told the amount of heat equal to Q.

To determine the change in temperature, you must use the following formula:

Q = c * m * dt, from here we find that:

dt = Q / (c * m) = 50400 / (4200 * 2) = 50400/8400 = 504/84 = 6 ° degrees Celsius.

Answer: The water will heat up to 6 ° Celsius.