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Chemical Engineering - Stoichiometry

Exercise : Stoichiometry - Section 6
31.
Pick out the wrong statement.
Ten times dilution of a normal solution (N) reduces its normality to N/10.
When equal weights of oxygen and methane are mixed in an empty reactor at room temperature, then the fraction of total pressure exerted by the oxygen is 1/2.
Volume occupied by 9.034 x 1023 atoms of oxygen in ozone (O3) at NTP will be 11200 c.c
One kg mole of an ideal gas at N.T.P occupies 22400 Nm3.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Pick out the wrong statement.
To make 100 kg of a solution containing 40% salt by mixing solution A (containing 25% salt) and solution B (containing 50% salt), the amount of solution A required is 40 kg.
1.2 gm atoms of carbon and 1.5 gm moles of oxygen are reacted to give 1 gm mole of carbon dioxide. The limiting reactant is carbon. The percent excess reactant supplied is 25.
A gas bubble at a pressure of Pg is passed through a solvent with a saturation vapour pressure of Ps. If the time of passage of the bubble is long and air is insoluble in the solvent, the mole fraction of solvent in the bubble will be equal to Ps/Pg.
A supersaturated solution of a sparingly soluble solute, at a concentration of C, is being fed to a crystalliser at a volumetric flow rate of V. The solubility .of the solute is C1. The output rate of solids from an efficient crystalliser is (C + C1) V.
Answer: Option
Explanation:
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33.
Pick out the correct conversion.
1 BTU =453.6 calories
1 BTU = 252 calories
1 calorie = 252 BTU
1 calorie = 453.6 BTU
Answer: Option
Explanation:
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34.
The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
lower than
higher than
same as
not related to
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following is not used for computing latent heat of vaporisation ?
Clausius-Clayperon equation
Reference substance plots based on Durhing & Othmer plots
Kistyakowasky's equation
Hess's law of constant heat summation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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