Saved Bookmarks
| 1. |
A gas `(C_(v.m) = (5)/(2)R)` behaving ideally is allowed to expand reversibly and adiabatically from `1` litre to `32` litre. Its initial temperature is `327^(@)C`. The molar enthalpy change (in `J//mol`) for the process is :A. `-1125 R`B. `-625 R`C. `-1575 R`D. None of these |
|
Answer» Correct Answer - C `(T_(2))/(T_(1)) = ((V_(1))/(V_(2)))^(gamma-1)` or `T_(2) = 150 K` `DeltaH_(m) = nC_(P)DeltaT = (7)/(2)R(150 - 600) = -1575 R` |
|