Independent of temperature
Increases with rise in pressure
Increased with decrease in pressure
Unchanged with pressure changes
✅ The correct answer is option B.
Chemical Engineering MCQs
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?
AB₃
A₂B₃
A₂B
AB₂
✅ The correct answer is option A.
At standard conditions, N₂ + 2O₂ ⇋ 2NO₂; ΔG° = 100 kJ/mole NO + ½O₂ ⇋ 2NO₂; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is
15
30
85
170
✅ The correct answer is option C.
Mass number of an atom is the sum of the numbers of
Neutrons and protons
Protons and electrons
Neutrons and electrons
Both A & B
✅ The correct answer is option D.
At a temperature of 0°K, the molecules of a gas have only __________ energy.
Rotational
Vibrational
Translational
None of these
✅ The correct answer is option C.
A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c.
283
566
293
141.5
✅ The correct answer is option C.
Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively).
Sv
1/St
St
1/Sv
✅ The correct answer is option A.
Pick out the wrong unit conversion of temperature.
°R = 273 + °F
Temperature difference of 1°K = 1°C = 9/5 °F
°C = (F- 32) x 0.555
°F = (°C + 17.778) x 1.8
✅ The correct answer is option A.
In a chemical process, the recycle stream is purged for
Increasing the product yield
Enriching the product
Limiting the inerts
Heat conservation
✅ The correct answer is option C.
For most salts, the solubility increases with rise in temperature, but the solubility of __________ is nearly independent of temperature rise.
Sodium chloride
Sodium carbonate monohydrate
Anhydrous sodium sulphate
Hypo
✅ The correct answer is option A.