Chemical Engineering MCQs with explanations

Question 1

Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ________?

Accepted Answer

Do not exert attractive force on each other

Question 2

When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only ________ the true value?

Accepted Answer

Half

Question 3

Which of the following fixes the volume of a batch reactor for a particular conversion and production rate?

Accepted Answer

Density of mixture

Question 4

Out of the following, N2 content is minimum in________?

Accepted Answer

Ammonium sulphate

Question 5

1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole. K, the final temperature will be?

Accepted Answer

274 K

Question 6

The presence of impurities in iron________?

Accepted Answer

Decreases its melting point

Question 7

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the ________ process?

Accepted Answer

Neutral sulphite semi-chemical

Question 8

Periclase refractory contains mainly________?

Accepted Answer

MgO

Question 9

Effectiveness factor of a catalyst pellet is a measure of the ________ resistance?

Accepted Answer

Pore diffusion

Question 10

Electric bulbs are made of ________ glass?

Accepted Answer

Flint

Chemical Engineering MCQs with Explanations