Question

Find the change in thermal energy of a 25kg severed clown doll head that heats up from 25°C to 35°C, and has the specific heat of 1,700 J/(kg°C).

Answer 1

Q = 425 kJ

Step-by-step explanation:

Given that,

Mass, m = 25 kg

The clown doll head that heats up from 25°C to 35°C

The specific heat is 1700 J/kg°C

We need to find the internal energy of it. The heat required to raise the temperature is given by the formula as follows :

`Q=mc\Delta T\\\\Q=25* 1700* (35-25)\\\\Q=425000\ J\\\\Q=425\ kJ`

So, 425 kJ of thermal energy is severed.