HOw much heait is needed to raise the temperature of 5 kg of water 5 degrees celsius

To calculate the amount of heat needed to raise the temperature of a substance, you can use the formula:

Q = mcΔT

Where:
Q = amount of heat (in Joules)
m = mass of the substance (in kilograms)
c = specific heat capacity of the substance (in J/kg°C)
ΔT = change in temperature (in degrees Celsius)

For water, the specific heat capacity (c) is approximately 4.18 J/g°C.

First, convert the mass of water from kilograms to grams:
5 kg = 5000 g

Now, plug in the values into the formula:

Q = 5000 g * 4.18 J/g°C * 5°C

Q = 104,500 J

Therefore, approximately 104,500 Joules of heat is needed to raise the temperature of 5 kg of water by 5 degrees Celsius.

Note: It's important to ensure that all units are consistent throughout the calculation. The specific heat capacity given is in joules per gram per degree Celsius, so the mass needs to be converted to grams in order to match the units.