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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

______________ equation gives the effect of temperature on heat of reaction ?

A Kirchoff’s

B Maxwell’s

C Antoine

D Kistyakowsky

Review Detailed Answer

Correct Answer: Kirchoff’s

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

A N2O4

B N2O5

C N2O3

D None of these

Review Detailed Answer

Correct Answer: N2O5

Addition of a non-volatile solute to a pure solvent ____________________?

A Increases its freezing point

B Increases its boiling point

C Decreases its freezing point

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________?

A 0

B 1

C 1

Review Detailed Answer

Correct Answer: 1

If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its___________________?

A Bubble point

B Saturation temperature

C Dew point

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

With rise in temperature, the heat capacity of a substance___________________?

A Increases

B Decreases

C Remains unchanged

D Either A. or B.; depends on the substance

Review Detailed Answer

Correct Answer: Increases

Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?

A PvB

B xB.PvB

C (Patm – Pvw)xB

D xB.Patm

Review Detailed Answer

Correct Answer: PvB

One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?

A Brix = (400/G) – 400

B Brix = 200 (G-1)

C Brix = 145 – (145/G)

D None of these

Review Detailed Answer

Correct Answer: Brix = (400/G) – 400

1 torr is equal to ______________ mm Hg column?

A 1

B 0.1

C 10

D 1000

Review Detailed Answer

Correct Answer: 1

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?

A -136.5°C

B – 136.5°K

C -273°C

D 0°K

Review Detailed Answer

Correct Answer: -136.5°C

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

______________ equation gives the effect of temperature on heat of reaction ?

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

Addition of a non-volatile solute to a pure solvent ____________________?

For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________?

If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its___________________?

With rise in temperature, the heat capacity of a substance___________________?

One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?

1 torr is equal to ______________ mm Hg column?

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?