CHEMICAL ENGINEERING | Chemical Process

Concentration of hydrogen peroxide is done by

Byadmin August 10, 2022

Question: Concentration of hydrogen peroxide is done by
[A].

crystallisation

[B].

vacuum crystallisation

[C].

atmospheric distillation

[D].

dehydration

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Materials and Construction

Monel alloy is

Question: Monel alloy is
[A].

the costliest of all the alloys of nickel.
[B].
not suitable for making kitchen utensils.
[C].
used for making steam valves and turbine blades as it resists steam attack at high temperature.
[D].
not used in cast and wrought forms.

Answer: Option C

Explanation:

No answer description available for this question.

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Chemical Process

Permanent hardness of water can be removed by____________________?

Permanent hardness of water can be removed by____________________?

A. Simply boiling
B. Adding alum
C. Passing it through cation & anion exchangers
D. All (A), B. and (C)

Read More Permanent hardness of water can be removed by____________________?
CHEMICAL ENGINEERING | Mass Transfer

Molecular diffusion is caused by the

Question: Molecular diffusion is caused by the
[A].

transfer of molecules from low concentration to high concentration region.
[B].
thermal energy of the molecules.
[C].
activation energy of the molecules.
[D].
potential energy of the molecules.

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Reaction Engineering

A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.

Question: A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.
[A].

4
[B].
8
[C].
12
[D].
16

Answer: Option D

Explanation:

No answer description available for this question.

Read More A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.
CHEMICAL ENGINEERING | Mass Transfer

A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))

Question: A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
[A].

M(Xo – XF)
[B].
M(Xo/XF)
[C].
M ln(Xo/XF)
[D].
MXo ln(Xo/XF)

Answer: Option D

Explanation:

No answer description available for this question.

Read More A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
CHEMICAL ENGINEERING | Chemical Engineering Basics

The basic constituent of vegetable oils is

Question: The basic constituent of vegetable oils is
[A].

triglyceride
[B].
fatty acids
[C].
fatty alcohol
[D].
mono esters

Answer: Option B

Explanation:

No answer description available for this question.

Read More The basic constituent of vegetable oils is

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