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Chemical Engineering - Stoichiometry

Exercise : Stoichiometry - Section 3
26.
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.
+816.15
+1632.3
-1632.3
-2448.45
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Pick out the wrong statement about the recycle stream in a process.
Recycling in a process stream helps in utilising the valuable reactants to the maximum with minimum loss of reactants.
The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the quantity of the same reactant entering the process as fresh feed is called combined feed ratio.
Recycling in a process does not help in getting higher extent of reaction.
Recycling is exemplified by refluxing back a part of the distillate to the distillation column to maintain the quantity of liquid within the column.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is
0
1
2
3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is
0.2500
0.2528
0.5000
0.5055
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which of the following ideal gas laws are not applicable to mixture of gases ?
Amgat's law
Dalton's law
Boyle's law & Charle's Law
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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