This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the…
This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1: In an adiabatic process, change in internal energy of a gas is equal to work done on/ by the gas in the process.
Statement 2: The temperature of a gas remains constant in an adiabatic process.
Statement 1 is true, Statement 2 is true, Statement 2 is a correct explanation of Statement 1.
Statement 1 is true, Statement 2 is false.
Statement 1 is false, Statement 2 is true.
Statement 1 is false, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.
Solution
In an adiabatic process, $\delta \mathrm{H}=0$ And according to first law of thermodynamics
$
\begin{aligned}
& \delta H=\delta U+W \\
& \therefore W=-\delta U
\end{aligned}
$