An ideal gas expands in such a way that `PV^2 = `constant throughout the process.

Options

A. (a)This expansion is not possible without heating
B. (b)This expansion is not possible without cooling
C. (c)Internal energy remains constant in this expansion
D. (d)Internal energy increases in this expansion

Answer

B

Explanation

`PV= nRT` & `PV^(2)` = constant `implies V prop (1)/(T) implies ` gas can expand only if it cods As temperature decreases during expansion so internal energy will decrease.