# How much energy is needed to heat up 10 litres of water for a bath, if the temperature of cold water is 10 degrees and the bath temperature is 38 degrees?

Feb 27, 2018

$E = 1176000 J$

#### Explanation:

Assuming the specific heat capacity of water is 4200 J / Kg / degrees C.

The mass of water (since 1L = 1Kg) is 10Kg, and the change in temperature is 38-10 = 28 degrees.

$E = m c \Delta t$

$E = 10 \cdot 4200 \cdot 28$

$E = 1176000 J$