Question

In an adiabatic expansion of ideal gas

• A. $W = - \Delta E$
• B. $W = \Delta E$
• C. $\Delta E = 0$
• D. W = 0

Answer 1

Answer: (B)

$W = \Delta E$

Answer 2

: Since the system is insulated, heat is not allowed to enter or leave the system.

Thus, $q = 0,\Delta E = q + W \Rightarrow \Delta E = W$