Related Questions

Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these
Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be
A Same
B Doubled
C Halved
D One fourth of its original value
In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will
A Remain the same
B Be halved
C Also be doubled
D Become one fourth
Hummingbirds are the only birds __________ flying backward as well as forward, up and down.
A able
B able to
C capable for
D capable of
Fqra cold viscous feed, backward feed gives __________ than forward feed.
A A higher capacity
B A lower capacity
C Lower economy
D None of these
The advantage of backward feed multiple effect evaporators over forward feed units is that
A Heat sensitive material can be handled
B There is no additional cost of pumping
C Most concentrated liquid is at highest temperature
D Equal heat transfer co-efficients exist in various effects
For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in
A Increased economy
B Decreased economy
C Lower capacity
D No effect on economy
A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides
A Higher economy
B Lower capacity
C Both A & B
D Lower economy
For hot feed, forward feeding as compared to backward feeding results in __________ economy.
A Increased
B Decreased
C No effect on
D None of these
Which of the following will favour the reverse reaction in a chemical equilibrium reaction?
A Increasing the concentration of one of the reactants
B Increasing the concentration of one or more of the products
C Removal of at least one of the products at regular interval
D None of these

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