Question

How much heat is required to raise the temperature of 0,20 kg of water from 15 degrees Celsius to 45 degrees Celsius?

Answer 1

25116 J

Step-by-step explanation:

The amount of heat required to raise the temperature of a substance is given by the equation

`Q=mC\Delta T`

where

m is the mass of hte substance

C is the specific heat capacity of the substance

`\Delta T` is the change in temperature

For the sample of water in this problem, we have:

m = 0.20 kg is the mass

`C=4186 J/kg^(\circ)C` is the specific heat of water

`\Delta T=45-15=30^(\circ)C` is the increase in temperature

Therefore, the amount of heat required is

`Q=(0.20)(4186)(30)=25116 J`