Answer:
Q = -2090 J
Explanation:
Given that,
Mass, m = 50 g
Water is cooled from 70°C to 60°C.
We need to find how many heat energy are released. Heat released is given by :
[tex]Q=mc\Delta T[/tex]
c is the specific heat of water, [tex]c=4.18\ J/g-C[/tex]
Putting all the values,
[tex]Q=50\times 4.18\times (60-70)\\\\Q=-2090\ J[/tex]
So, the heat energy released is 2090 J and negative sign shows heat is released.
