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Chemical Engineering - Stoichiometry

Exercise : Stoichiometry - Section 4
46.
Pick out the correct statement.
Heat of solution is always positive.
At equilibrium, ΔG is zero.
For the reaction, PCl5PCl3 + Cl2, ΔG is less than ΔE
The heating of water in a beaker is an example of an isolated system.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is
independent of temperature.
increases with rise in pressure.
increased with decrease in pressure.
unchanged with pressure changes.
Answer: Option
Explanation:
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48.
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
1.72
0.58
0.5
0.2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Pick out the correct statement.
A substance existing above its critical temperature is called a saturated vapor.
A mixture of vapor gas is called saturated, if the equilibrium vapor pressure of the liquid is more than the partial pressure of the vapor at the same temperature.
Heat added to or given up by a substance at constant temperature is called the sensible heat.
The end points of a vapor-pressure vs. temperature curve are critical and triple points.
Answer: Option
Explanation:
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50.
Normality of a solution does not change with the increase in the
pressure
temperature
solute concentration
dilution of the solution
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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