Stoichiometry Quiz 5
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Pick out the wrong statement ?
2 / 50
Pick out the wrong unit conversion of heat transfer rate?
3 / 50
Pick out the wrong unit conversion of calorific value?
4 / 50
Solutions which distil without change in composition are called_________?
5 / 50
Pick out the wrong statement?
6 / 50
7 / 50
Refractories used in/for _______ should have low thermal conductivity?
8 / 50
Recycling in a chemical process facilitates_____?
9 / 50
Refractoriness/fusion points of ?Superduty? refractories is ______ ?C?
10 / 50
Refractory bricks having lower porosity have _______?
11 / 50
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13 / 50
Presence of MgO in alumino-silicate refractories _______ its refractoriness ?
14 / 50
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16 / 50
Roof of a basic electric furnace is made of _______ bricks?
17 / 50
Pure oxide refractories are generally monocrystalline in nature and are self bonded _______ bricks are generally used as moderator in nuclear reactors?
18 / 50
Pick out the wrong unit conversion of temperature?
19 / 50
Raoult?s law is obeyed by a ______ solution?
20 / 50
Silica bricks are never used for lining the__________?
21 / 50
S.T.P. corresponds to __________?
22 / 50
Pick out the wrong unit conversion ?
23 / 50
Saturated molal absolute humidity of the vapor-gas mixture depends upon the________?
24 / 50
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is__________?
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28 / 50
Raoult?s law is not applicable to the_____?
29 / 50
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_________?
30 / 50
Sodium _______ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?
31 / 50
Refluxing of part of the distillate in a fractionating column is a ?recycling operation?, aimed primarily at________?
32 / 50
Real gases approach ideal behaviour at_____?
33 / 50
Solutions having the same osmotic pressure are called ______ solutions?
34 / 50
Pick out the wrong unit conversion of heat transfer co-efficient?
35 / 50
Refractory bricks with lower permeability is produced by using __________?
36 / 50
Pick out the wrong conversion formula for the conversion of weight units ?
37 / 50
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40 / 50
Pick out the wrong statement about the recycle stream in a process ?
41 / 50
Size range of the colloids particles is ___________?
42 / 50
Quartz is___________?
43 / 50
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?
44 / 50
Pick out the wrong unit conversion of thermal conductivity ?
45 / 50
Pick out the wrong unit conversion of mass transfer co-efficient?
46 / 50
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is__________?
47 / 50
Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to___________?
48 / 50
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_________?
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