6721. The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.
Reduced
Boyle
Critical
Inversion
✅ The correct answer is option D.
Chemical Engineering
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6722. Pick out the wrong statement about the recycle stream in a process.
Recycling in a process stream helps in utilising the valuable reactants to the maximum with minimum loss of reactants
The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the quantity of the same reactant entering the process as fresh feed is called combined feed ratio
Recycling in a process does not help in getting higher extent of reaction
Recycling is exemplified by refluxing back a part of the distillate to the distillation column to maintain the quantity of liquid within the column
✅ The correct answer is option C.
6723. __________ chart is a graph related to Antonie equation.
Ostwald
Cox
Mollier’s
Enthalpy-concentration
✅ The correct answer is option B.
6724. Concentration of a solution expressed in terms of __________ is independent of temperature.
Molarity
Normality
Molality
None of these
✅ The correct answer is option C.
6725. Validity of the relationship, inputs = outputs, holds good for the system at steady state
With chemical reaction
Without chemical reaction
Without chemical reaction & losses
None of these
✅ The correct answer is option C.
6726. Which of the following is insensitive to changes in pressure?
Heat of vaporisation
Melting point
Heat of fusion
Both B & C
✅ The correct answer is option D.
6727. A saturated vapor on being compressed would
Condense
Form wet steam
Both A & B
Neither A nor B
✅ The correct answer is option C.
6728. The heat of adsorption of a gas caused by Van der Walls forces of attraction and capillarity is equal to the heat of
Normal condensation
Wetting
Sum of A and B
Difference of A and B
✅ The correct answer is option C.
6730. S.T.P. corresponds to
1 atm. absolute pressure & 15.5°C
760 mm Hg gauge pressure & 15.5°C
760 torr & 0°C
101.325 kPa gauge pressure & 15.5°C
✅ The correct answer is option A.