When 90 kJ is removed from a 2-kg copper bar, its temperature drops from 200$\degree$C to 85$\degree$C. The specific heat of copper is
A) 0.16 kJ/kg$\degree$C.
B) 0.19 kJ/kg$\degree$C.
C) 0.23 kJ/kg$\degree$C.
D) 0.39 kJ/kg$\degree$C.

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The Answer of When 90 kJ is removed from a 2-kg copper bar, its temperature drops from 200$\degree$C to 85$\degree$C. The specific heat of copper is
A) 0.16 kJ/kg$\degree$C.
B) 0.19 kJ/kg$\degree$C.
C) 0.23 kJ/kg$\degree$C.
D) 0.39 kJ/kg$\degree$C.

When 90 KJ Is Removed from a 2-Kg Copper Bar °\degree°

When 90 KJ Is Removed from a 2-Kg Copper Bar $\degree$