<span>Peripheral nervous system consists of nerves that help in communication among different parts of the body. In nervous system nerves are used to take and deliver messages. These messages are taken from different parts of the body to brain and these nerves are spreading all over the body.</span>
Solution :
a). Applying the energy balance,



![$0=[mc(T_f-T_i)_{iron}] + [mc(T_f-T_i)_{water}]$](https://tex.z-dn.net/?f=%240%3D%5Bmc%28T_f-T_i%29_%7Biron%7D%5D%20%2B%20%5Bmc%28T_f-T_i%29_%7Bwater%7D%5D%24)


b). The entropy change of iron.


= -9.09 kJ-K
Entropy change of water :


= 10.76 kJ-K
So, the total entropy change during the process is :

= -9.09 + 10.76
= 1.67 kJ-K
c). Exergy of the combined system at initial state,






Therefore, energy of the combined system at the initial state is

= 63.94 -13.22
= 50.72 kJ
Similarly, Exergy of the combined system at initial state,





Thus, energy or the combined system at the final state is :

= 216.39 - 9677.95
= -9461.56 kJ
d). The wasted work



= 50.72 + 9461.56
= 9512.22 kJ
Answer:
well the correct answer is 2
Explanation:
this is according to law of conservation of mass