Greater for liquid state than for solid state
Lower for liquid state than for gaseous state
Higher for solid state than for liquid state
Equal for solid and liquid states below melting point
✅ The correct answer is option A.
Statiometery MCQs
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The latent heat of condensation (kJ/kg⁻¹ ) under these conditions is
40732
2676
2263
540
✅ The correct answer is option C.
Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0-5m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. Its units are
M/s
Cm/s
Mole/m².s.Pa
Kmole/m².s.Pa
✅ The correct answer is option C.
Cp/Cv for monoatomic gases is
1.44
1.66
1.99
1
✅ The correct answer is option B.
Which of the following ideal gas laws are not applicable to mixture of gases ?
Amgat’s law
Dalton’s law
Boyle’s law & Charle’s Law
None of these
✅ The correct answer is option C.
With rise in temperature, the heat capacity of a substance
Increases
Decreases
Remains unchanged
Either A or B; depends on the substance
✅ The correct answer is option A.
‘Cox’ chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the
Temperature vs. log (vapor pressure)
Vapor pressure vs. log (temperature)
Log (temperature) vs. log (vapor pressure)
Vapor pressure vs. temperature
✅ The correct answer is option A.
__________ equation relates latent heat and boiling point.
Antonie
Kistyakowsky
Kopp’s
Trouton’s
✅ The correct answer is option D.