The pressure-volume work for an ideal gas canbe calculated by using the expression W=-int_(V_(i))^(V_(f))P_(ex)dV. The work can also be calculated from the pV - plot by using the area under the curve within the specified limits. When an ideal gas is compressed (i) reversibly or (ii)irreversibly from volume V_(i) to V_(f). Choose the correct option.

The pressure-volume work for an ideal gas canbe calculated by using th

1.	The pressure-volume work for an ideal gas canbe calculated by using the expression W=-int_(V_(i))^(V_(f))P_(ex)dV. The work can also be calculated from the pV - plot by using the area under the curve within the specified limits. When an ideal gas is compressed (i) reversibly or (ii)irreversibly from volume V_(i) to V_(f). Choose the correct option.
Answer» `W_("reversible")=W_("IRREVERSIBLE")` `W_("reversible")ltW_("irreversible")` `W_("reversible") gt W_("irreversible")` `W_("reversible")=W_("irreversible")+P_(ex)DeltaV` Solution : In both the curves, work DONE on the gas is REPRESENTED by the shaded area and the area under the curve is alwaysmore in irreversible compression. Hence, `W_("irreversible") gt W_("reversible")`