Question

How much energy is needed to heat 1kg of copper by 20 degrees Celsius
Step by step explanation

Answer 1

Q = 0.0077 J

Step-by-step explanation:

Given that,

Mass of copper, m = 1 kg = 0.001 g

The change in temperature = 20°C

We need to find the energy needed to heat copper. The formula is given by :

`Q=mc\Delta T`

c is the specific heat of copper, c = 0.385 J/g°C

Put values in the above formula

`Q=0.001\ g* 0.385\ J/g^(\circ) C* 20^(\circ) C\\\\Q=0.0077\ J`

So, the energy needed to heat 1 kg of copper is 0.0077 J.