Answer:
Q = 0.0077 J
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 :
[tex]Q=mc\Delta T[/tex]
c is the specific heat of copper, c = 0.385 J/g°C
Put values in the above formula
[tex]Q=0.001\ g\times 0.385\ J/g^{\circ} C\times 20^{\circ} C\\\\Q=0.0077\ J[/tex]
So, the energy needed to heat 1 kg of copper is 0.0077 J.
