6671. Which of the following is not used for computing latent heat of vaporisation?
Clausius-Clayperon equation
Reference substance plots based on Durhing & Othmer plots
Kistyakowasky’s equation
Hess
✅ The correct answer is option D.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
6672. The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be
2M
M/2
M
M/4
✅ The correct answer is option A.
6673. The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is
Doubled
Halved
Trebled
Unpredictable
✅ The correct answer is option D.
6674. In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
Solute concentration
Temperature
Both A & B
Neither A nor B
✅ The correct answer is option C.
6675. The combustion equations of carbon and carbon monoxide are as follows: C + O₂ = CO₂, ΔH = – 394 kJ/kg . mole CO + 1/2 O₂ = CO₂, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is __________ kJ/kg. mole.
-109.5
109.5
180
100
✅ The correct answer is option A.
6676. At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant?
273°C
273°K
100°C
200°C
✅ The correct answer is option A.
6677. If pH value of a solution is 8, then its pOH value will be
6
1
7
10
✅ The correct answer is option A.
6678. An ideal gas can be liquified, because
Its molecular size is very small
Its critical temperature is more than 0°C
Forces operative between its molecules are negligible
It gets solidified directly without becoming liquid
✅ The correct answer is option C.
6679. Heat of reaction is a function of the
Pressure
Temperature
Both(a)&(b)
Neither (a) nor (b)
✅ The correct answer is option C.
6680. Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the
Same elevation in boiling point
Different elevation in boiling point
Elevation in boiling point in the ratio of their molecular weights
None of these
✅ The correct answer is option A.