Which statements are correct for a proce...

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

`(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`

Text Solution

Verified by Experts

The correct Answer is:

A, B, C, D

`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`

Topper's Solved these Questions

CHEMICAL THERMODYNAMICS
AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- III) (LEVEL- II (ADVANCED) (LINKED COMPREHENSION TYPE QUESTIONS)|6 Videos
CHEMICAL THERMODYNAMICS
AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- III) (LEVEL- II (ADVANCED) (MATRIX MATCHING TYPE QUESTIONS)|2 Videos
CHEMICAL THERMODYNAMICS
AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- III) (LEVEL- II (ADVANCED) (STRAIGHT OBEJCETIVE TYPE QUESTIONS)|9 Videos
CHEMICAL THERMODYANMICS
AAKASH SERIES|Exercise Questions For Descriptive Answers|28 Videos
ELECTRON MIGRATION EFFECTS
AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

Which of the following statements is correct for spontaneous adsorption of a gas ?

`DeltaS` is negative and therefore, `DeltaH` should be highly positive

`DeltaS` is negative and therefore, `DeltaH` should be highly negative

`DeltaS` is positive and therefore, `DeltaH` should be negative

`DeltaS` is positive and therefore, `DeltaH` should also be highly positive

Which of the following statements is/are correct with respect to behaviour of real gas.

For every vander Waal gas at critical condition, attractive force will be dominant.

The liquid and gaseous state can be distinguished only if the temperature is below the gas's critical temperature,

At very high pressures, real gases occupy greater volume as compared to ideal gas having samo moles at same temperature and exerting same pressure.

For a real gas the 'y' intercept of `(PV_m)/(T)` vs curve where 'P' represents pressure (in atm), `V_m` represents molar volume and ‘T’ represents temperature in kelvin is equal to 0.0821 atm-litre/mol Kelvin.

What is correct about isothermal expansion of the ideal gas ?

`W_(rev) = W_(irr)`

`W_(rev) + W_(irr) = 0`

`W_(rev) gt W_(irr)`

`q_(rev) = q_(irr)`