A sample of ideal gas undergoes an adiabatic expansion and performs of work on the…

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

A sample of ideal gas undergoes an adiabatic expansion and performs

150\,\text{J}

of work on the surroundings. Which set of signs for

Q

W

and

\Delta U

correctly describes the process? (a)

Q = 0,\; W = +,\; \Delta U = +

(b)

Q = -,\; W = +,\; \Delta U = 0

(c)

Q = 0,\; W = +,\; \Delta U = -

(d)

Q = 0,\; W = -,\; \Delta U = +