Which statements are correct for a process involving an ideal gas?

1.	Which statements are correct for a process involving an ideal gas?
Answer» `(Delta S)_("Isothermal, sys") = 2.303 N R "long" (V_(f))/(V_(i))` `(Delta S)_("adiabatic, rev") = 0` `(Delta S)_("TOTAL, irr") gt 0` `(Delta S)_("Total, adiabatic, rev") = 0` Solution :`Delta S = n C_(V) "ln" (T_(2))/(T_(1)) + nR "ln" (V_(2))/(V_(1))` Isothermal `Delta S = nC_(V) "ln" (T_(2))/(T_(1)) + nR "ln" (V_(2))/(V_(1))` Adiabatic, rev `RARR q_("rev") = 0 rArr Delta S = 0` `rArr Delta S_("surr") = 0 rArr Delta S_("total") = 0` for irreversible, `Delta S_("total") gt 0`

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