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Chemical Engineering - Stoichiometry

Exercise : Stoichiometry - Section 5
1.
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules
collide without loss of energy.
do work equal to loss in kinetic energy.
are above the inversion temperature.
exert no attractive force on each other.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
With increase in the solute concentration, the specific heat of aqueous solutions
increases
decreases
remains unchanged
either (a) or (b); depends on the type of solution
Answer: Option
Explanation:
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3.
The heat capacity of a substance is
greater for liquid state than for solid state.
lower for liquid state than for gaseous state.
higher for solid state than for liquid state.
equal for solid and liquid states below melting point.
Answer: Option
Explanation:
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4.
The heat of solution depends upon the
nature of solvent
concentration of solution
nature of solute
all (a), (b) & (c)
Answer: Option
Explanation:
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5.
The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be
10%
5%
18.18%
20%
Answer: Option
Explanation:
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