For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature)

Byadmin August 25, 2022

Question: For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature)
[A].

Δt

[B].

Δt2

[C].

Δt3

[D].

Δt

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Mass Transfer

Dimension of mass diffusivity is the same as that of

Question: Dimension of mass diffusivity is the same as that of
[A].

kinematic viscosity
[B].
dynamic viscosity
[C].
surface tension
[D].
pressure

Answer: Option A

Explanation:

No answer description available for this question.

Read More Dimension of mass diffusivity is the same as that of
Heat Transfer

Sensible heat is the heat required to __________________?

Sensible heat is the heat required to __________________?

A. change vapour into liquid
B. change liquid into vapour
C. increase the temperature of a liquid of vapour
D. convert water into steam and superheat it
E. convert saturated steam into dry steam

Read More Sensible heat is the heat required to __________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

Question: Out of the following fuels, the difference between the net and gross calorific value is maximum in case of
[A].

pitch
[B].
fuel oil
[C].
blast furnace gas
[D].
bituminous coal

Answer: Option B

Explanation:

No answer description available for this question.

Read More Out of the following fuels, the difference between the net and gross calorific value is maximum in case of
CHEMICAL ENGINEERING | Mass Transfer

In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

Question: In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)
[A].

6.89
[B].
8.89
[C].
10
[D].
8.25

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)
CHEMICAL ENGINEERING | Chemical Process

Alkylbenzene sulfonate (ABS) is a

Question: Alkylbenzene sulfonate (ABS) is a
[A].

detergent
[B].
rubber
[C].
pesticide
[D].
polyester

Answer: Option A

Explanation:

No answer description available for this question.

Read More Alkylbenzene sulfonate (ABS) is a
CHEMICAL ENGINEERING | Mass Transfer

Berl saddle made of carbon cannot be used for

Question: Berl saddle made of carbon cannot be used for
[A].

alkalis
[B].
SO2
[C].
H2SO4
[D].
oxidising atmosphere

Answer: Option D

Explanation:

No answer description available for this question.

Read More Berl saddle made of carbon cannot be used for

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