Chemical Engineering - Stoichiometry

46.
40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is
1/2
1/3
1/4
2/3
Answer: Option
Explanation:
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47.
A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is
13728 J
19206 J
4576 J
12712 J
Answer: Option
Explanation:
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48.
An oxidation process is accompanied by decrease in the
number of electrons.
oxidation number.
number of ions.
all (a), (b) & (c).
Answer: Option
Explanation:
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49.
Refluxing of part of the distillate in a fractionating column is a 'recycling operation', aimed primarily at
heat conservation.
yield enhancement.
product enrichment.
none of these.
Answer: Option
Explanation:
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50.
Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?
(141.5/G) - 131.5
145 - (145/G)
200(G-1)
(400/G) - 400
Answer: Option
Explanation:
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