A. 10
B. 102
C. 103
D. 104
Correct Answer: 10 ✔
Last Updated: March 05, 2019
Related MCQs
- 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__________?
- Which of the following is the Clausius-Clapeyron Equation ?
- The value of Trouton’s ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kistyakowsky equation is used for calculation of Trouton’s ratio of __________ liquids?
- Weight of 56 litres of ammonia at N.T.P. is __________ gm?
- Molality is defined as the number of gm moles of solute per __________ of solvent?
- A solution with reasonably permanent pH is called a/an __________ solution?
- The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the__________?
- A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is__________?
- For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to__________?
- With rise in temperature, the heat capacity of a substance__________?
- One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as __________?
- A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be__________?
- The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be __________ kJ/kgmole?
- A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of __________?
- Heat of __________ of a fuel is called its calorific value?
- The gravimetric (i.e., by weight) composition of a vapor saturated gas is independent of the__________?
- The heats of vaporisation of CS2, C2H5OH &H2O are 26.8, 38.6 & 40.6 KJ/kg.mole respectively. The order of decreasing inter-molecular forces in these liquids is__________?
- Viscosity of 1 centipoise is equal to 1 Centistoke in case of__________?
- Pick out the wrong unit conversion of temperature?