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Chemical Engineering - Stoichiometry

Exercise : Stoichiometry - Section 2
31.
pH value of an alkaline solution is
7
> 7
< 7
constant over a wide range
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
5
10
15
20
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition.
No component is concentrated at the surface of the solution.
The component molecules are non polar and are of almost equal size.
In the formation of solution, chemical combination/molecular association between unlike molecules takes place.
The attractive forces between like and unlike molecules are almost equal.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Kinematic viscosity of 1 m2 /second is equivalent to __________ stokes.
10
102
103
104
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Internal energy of a substance comprises of the __________ energy.
vibrational
rotational
translational
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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