Entropy change for an irreversible process taking system and surrounding together is___________________?
A. 0
B. > 0
C. < 0
D. None of these
Thermodynamics for Chemical
Third law of thermodynamics is helpful in___________________?
Third law of thermodynamics is helpful in___________________?
A. Prediction of the extent of a chemical reaction
B. Calculating absolute entropies of substances at different temperature
C. Evaluating entropy changes of chemical reaction
D. Both B. and C.
The internal energy of an ideal gas is a function of its _____________ only?
The internal energy of an ideal gas is a function of its _____________ only?
A. Molecular size
B. Volume
C. Pressure
D. Temperature
“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?
“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?
A. The statement as per Gibbs-Helmholtz
B. Called Lewis-Randall rule
C. Henry’s law
D. None of these
If two gases have same reduced temperature and reduced pressure, then they will have the same____________________?
If two gases have same reduced temperature and reduced pressure, then they will have the same____________________?
A. Volume
B. Mass
C. Critical temperature
D. None of these
Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O ⇌ CO2 + H2, by_________________?
Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O ⇌ CO2 + H2, by_________________?
A. Low temperature and high pressure
B. Low temperature and low pressure
C. High temperature and high pressure
D. High temperature and low pressure
For equilibrium process (i.e. reversible) in an isolated system __________________?
For equilibrium process (i.e. reversible) in an isolated system __________________?
A. ds = 0
B. ds 0
D. ds = Constant
Critical temperature is defined as the temperature above which a gas will____________________?
Critical temperature is defined as the temperature above which a gas will____________________?
A. Not liquify (barring exceptions)
B. Immediately liquify
C. Never liquify however high the pressure may be
D. None of these
The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?
The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?
A. Reversible isothermal volume change
B. Heating of a substance
C. Cooling of a substance
D. Simultaneous heating and expansion of an ideal gas
With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure___________________?
With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure___________________?
A. Increases
B. Decreases
C. Remain same
D. Decreases linearly