The amount of heat given out is -189000 J.
What is heat?
Heat is a form of energy that flows due to temperature differences.
To calculate the amount of heat given out, we use the formula below.
Formula:
- Q = cm(t₂-t₁)................. Equation 1
Where:
- Q = Amount of heat given out
- c = specific heat capacity of the water
- m = mass of the water
- t₂ = Final temperature of the water
- t₁ = Initial temperature of the water.
From the question,
Given:
- c = 4200 J/kg°C
- m = 0.75 kg
- t₂ = 20°C
- t₁ = 80°C
Substitute these values into equation 1
- Q = 4200(0.75)(20-80)
- Q = -189000 J.
Hence, The amount of heat given out is -189000 J.
Learn more about heat here: https://brainly.com/question/19666326
