CHEMICAL ENGINEERING | Thermodynamics for Chemical

What is the value of ln y (where y = activity co-efficient) for ideal gases ?

Byadmin March 12, 2019August 30, 2021

What is the value of ln y (where y = activity co-efficient) for ideal gases ?

A. Zero
B. Unity
C. Infinity
D. Negative

CHEMICAL ENGINEERING | Heat Transfer

Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.

Question: Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.
[A].

thermal conductivity
[B].
thickness
[C].
temperature difference
[D].
heat transfer area

Answer: Option B

Explanation:

No answer description available for this question.

Read More Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Out of the following the refractive index is the highest for

Question: Out of the following the refractive index is the highest for
[A].

glass
[B].
diamond
[C].
brine
[D].
kerosene

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Engineering Basics

Milk is fat dispersed in water. It is an example of

Question: Milk is fat dispersed in water. It is an example of
[A].

suspension
[B].
emulsion
[C].
gel
[D].
solution

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fuels and Combustion

A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the

Question: A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the
[A].

presence of large quantity of hydrogen in the fuel.
[B].
low calorific value of the fuel.
[C].
high sulphur content in the fuel.
[D].
lack of thorough mixing of fuel with air.

Answer: Option D

Explanation:

No answer description available for this question.

Read More A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the
CHEMICAL ENGINEERING | Fuels and Combustion

C/H ratio is the maximum in case of

Question: C/H ratio is the maximum in case of
[A].

coal
[B].
furnace oil
[C].
natural gas
[D].
naphtha

Answer: Option A

Explanation:

No answer description available for this question.

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Thermodynamics for Chemical

Refrigeration cycle_________________?

Refrigeration cycle_________________?

A. Violates second law of thermodynamics
B. Involves transfer of heat from low temperature to high temperature
C. Both A. and B
D. Neither A. nor B

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