NEET Class neet Answered

(a) ( ΔS)_isothermal  > ( ΔS )_adiabatic

Above statement is true .

Change in entropy of adiabatic is zero. 

Change in entropy for isothermal expansion process is greater than zero becuase heat is absorbed by system .

Hene change in entropy of isothermal process is greater than that of adiabatic process .

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(b)  T_A = T_B

It is true because process AB is isothermal process

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(c) W_isothermal > W_adiabatic

It is true because workdone by isothermal process is performed by absorbing external heat energy  whereas in adiabatic process work is done by utilizing internal energy..

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₍d) T_C  > T_A

In adiabatic process AC , gas expands using the internal energy and internal energy decreases when gas expands .

Hence T_C < T_A