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Chemical Engineering - Chemical Reaction Engineering

Exercise : Chemical Reaction Engineering - Section 10
6.
Pick out the correct statement.
A chemical reaction accompanied by absorption of heat is called an exothermic reaction.
A chemical reaction accompanied by evolution of heat is called an endother-mic reaction.
The rate constant for a first order reaction does not change on changing the concentration units.
Chemical equilibrium state is dynamic in nature.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The concentration of A in a first order reaction, A B, decreases
linearly with time.
exponentially with time.
very abruptly towards the end of the reaction.
logarithmically with time.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The equilibrium constant of chemical reaction __________ in the presence of catalyst.
increases
decreases
remains unaffected
can either increase or decrease (depends on the type of catalyst)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The order of a chemical reaction is
an experimentally determined quantity.
always equal to the total stoichiometric number of reactants.
never fractional.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.
less than
equal to
more than
equal to or more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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