A. Facilitates better control of the process
B. Improves the conversion
C. Increases the yield of products
D. None of these
Correct Answer: Facilitates better control of the process ✔
Last Updated: March 05, 2019
Related MCQs
- 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__________?
- Validity of the relationship, inputs = outputs, holds good for the system at steady state__________?
- Kopp’s rule is concerned with the calculation of__________?
- Viscosity of atmospheric air may be about __________ centipoise?
- Pick out the wrong unit conversion of heat transfer co-efficient?
- The rate of material __________ is zero in case of a steady state system?
- Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at__________?
- If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will __________?
- Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in __________ in the volume of the gas?
- The unit of Cp in S.I. units is__________?
- In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is__________?
- Real gases approach ideal behaviour at__________?
- Cp – Cv for an ideal gas is equal to__________?
- The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?
- One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH4 + 2O2 → CO2 + 2H2O. Both the reactants and products are in gas phase. ΔH°298 = – 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about__________?
- At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature?
- For water evaporating into unsaturated air under adiabatic conditions and at constant pressure, the __________ remains constant throughout the period of vaporisation ?
- Kinematic viscosity of 1 m2 /second is equivalent to __________ stokes?
- A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately ?
- The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen?
- During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change?
- Enthalpy of a vapor gas mixture may be increased by increasing the__________?
- The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight?
- Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the__________?
- The average translational kinetic energy with which a gas molecule is endowed is dependent on its__________?
- Heat of reaction is a function of the__________?
- 2 litres of nitrogen at N.T.P. weighs __________ gms ?
- 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 ?
- The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent?
- Boiling point of a non-homogeneous mixture of immiscible liquids is __________ that of any one of its separate components?
- The crystallisation of a solute from a solution may be done by__________?
- Except for monatomic gases, the molal heat capacity at constant volume for all gases is __________ Kcal/Kg mole.° K?
- 1 kg/m2 is equal to __________ mm water column?
- Unit of power is__________?
- The unit of dynamic viscosity is__________?
- A reduction process is accompanied with increase in the__________?
- Which of the following gases is the most soluble in water ?
- The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas)?
- Solutions having the same osmotic pressure are called __________ solutions?
- Which of the following ideal gas laws are not applicable to mixture of gases ?
- In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality ?
- The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state?
- The increase in the temperature of the aqueous solution will result in decrease of its__________?
- Raoult’s law states that ‘the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component’. This generalisation is based on the assumption that the__________?
- 1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is__________?
- Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the__________?
- Which of the following expressions defines the Baume gravity scale for liquids lighter than water ?
- For any system, the __________ heat of solution is dependent on the temperature and the adsorbate concentration?
- Pick out the wrong unit conversion of thermal conductivity ?
- 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 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are__________?
- The reverse process of fractional crystallisation is called__________?