Stoichiometry The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation Increases with pressure rise Both B & C Becomes zero at the critical point Decreases with increasing pressure Increases with pressure rise Both B & C Becomes zero at the critical point Decreases with increasing pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat of vaporisation __________ with increase in pressure. Becomes zero at critical pressure Increases Both B and C Decreases Becomes zero at critical pressure Increases Both B and C Decreases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is insensitive to changes in pressure? Heat of fusion Heat of vaporisation Both B & C Melting point Heat of fusion Heat of vaporisation Both B & C Melting point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Gases diffuse faster compared to liquids because of the reason that the liquid molecules Are heavier Are held together by stronger inter-molecular forces Move faster Have no definite shape Are heavier Are held together by stronger inter-molecular forces Move faster Have no definite shape ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A chemical process is said to occur under unsteady state, if the Ratio of streams entering/leaving are independent of time None of these Flow rates & composition both are time dependent Inventory changes do not take place Ratio of streams entering/leaving are independent of time None of these Flow rates & composition both are time dependent Inventory changes do not take place ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 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 Cm/s M/s Mole/m².s.Pa Kmole/m².s.Pa Cm/s M/s Mole/m².s.Pa Kmole/m².s.Pa ANSWER DOWNLOAD EXAMIANS APP
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