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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 6
26.
The order of a chemical reaction
can be determined only experimentally
can be determined from the stoichiometry of the reaction.
can not be zero.
can be fractional.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Pick out the wrong statement.
Lead can creep under its own weight at room temperature.
The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement.
Recrystallisation temperature decreases with decrease in strain in a cold worked metal.
With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Pick out the wrong statement.
Reflectivity of gases is very low.
Absorptivity for metals is very high.
Reflectivity for non-conducting materials is low.
Reflectivity of polished surfaces is very high.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
100% indirect reduction.
100% direct reduction.
50-60% indirect reduction.
30-40% indirect reduction.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Identify the false statement
Martensitic steels are less susceptible to pitting corrosion than austenitic steels.
Pitting corrosion is usually very localised.
Hydrogen embrittlement is facilitated by tensile stress.
Stress corrosion cracking is facilitated by tensile stress.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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