If work is done on the system in an adiabatic process,

Question

If work is done on the system in an adiabatic process, (A) Tf < Ti (B) Tf=Ti (C) Tf>Ti (D) information is insufficient

Tardigrade Admin · Accepted Answer

In adiabatic process, heat remains constant.
So, from first law of thermodynamics

Δ Q = Δ U + Δ W

\Rightarrow Δ U + Δ W = 0

When work is done on system,

Δ W = - v e

\Rightarrow Δ U = - Δ W = + v e

As,

Δ U = μ C_{V} Δ T = + v e

\Rightarrow Δ T = + v e

\Rightarrow T

increases or

T_{f} > T_{i} .

Q. If work is done on the system in an adiabatic process,