If you want to heat 100 kg of water at 20 ° C for your bath, calculate the amount of heat in the water. Then it shows that this is equivalent to 8360 kilojoules.
heat=mass*specificheat*changeinTemp
at 20C does not state what the change is.
To calculate the amount of heat in the water, you can use the equation:
Q = m * c * ΔT
Where:
Q = amount of heat (in Joules)
m = mass of the water (in kg)
c = specific heat capacity of water (approximately 4.18 J/g°C)
ΔT = change in temperature (in °C)
First, let's convert the mass of the water from kilograms to grams:
100 kg = 100,000 g
Next, let's calculate the change in temperature:
ΔT = final temperature - initial temperature
= 20 °C - 0 °C
= 20 °C
Now, plug in the values into the equation:
Q = 100,000 g * 4.18 J/g°C * 20 °C
= 8,360,000 J
To convert Joules to kilojoules, divide by 1000:
Q = 8,360,000 J / 1000
= 8360 kJ
So, the amount of heat in the water is equivalent to 8360 kilojoules.