A $4-$kg metal sphere initially at $600$ K is removed

from an oven and quenched by immersing it in a

closed tank containing $35$ kg of water initially at

$300$ K $.$ Each substance can be modeled as

incompressible. An appropriate constant specific

heat for the water is $c_w=4\mathrm{.}2k\frac{J}{k}g*K,$ and for

the metal is $C_m=0\mathrm{.}4k\frac{J}{k}g*K.$ Heat transfer

from the tank contents can be neglected.

Determine the final temperature, in K$,$ and the entropy generation

constont volume $=>W_{1-2}=0$

Metal sphere: