For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

Chemical Engineering Basics
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

240000 J

60000 J

30000 J

90000 J

240000 J

60000 J

30000 J

90000 J

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Chemical Engineering Basics
On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

Ultimate tensile strength (UTS)

Modulus of toughness

Modulus of resilience

Percent elongation

Ultimate tensile strength (UTS)

Modulus of toughness

Modulus of resilience

Percent elongation

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Chemical Engineering Basics
Sub zero treatment of steel is done to

Enhance its working performance in sub zero atmosphere

Suppress martensite transformation

Induce temper brittleness after its hardening

Reduce the retained austenite in hardened steel

Enhance its working performance in sub zero atmosphere

Suppress martensite transformation

Induce temper brittleness after its hardening

Reduce the retained austenite in hardened steel

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Chemical Engineering Basics
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Has very high C.O.P

Consumer minimum horse power

Employs minimum quantity of refrigerant

Is as light as possible

Has very high C.O.P

Consumer minimum horse power

Employs minimum quantity of refrigerant

Is as light as possible

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Chemical Engineering Basics
Lead is added to 60:40 brass primarily to improve

Corrosion resistance

Fluidity

Machinability

Strength

Corrosion resistance

Fluidity

Machinability

Strength

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Chemical Engineering Basics
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

1000

10

10000

100

1000

10

10000

100

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Chemical Engineering Basics

Chemical Engineering Basics For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

Chemical Engineering Basics On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

Chemical Engineering Basics Sub zero treatment of steel is done to

Chemical Engineering Basics The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Chemical Engineering Basics Lead is added to 60:40 brass primarily to improve

Chemical Engineering Basics 1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

Chemical Engineering Basics
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

Chemical Engineering Basics
On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

Chemical Engineering Basics
Sub zero treatment of steel is done to

Chemical Engineering Basics
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Chemical Engineering Basics
Lead is added to 60:40 brass primarily to improve

Chemical Engineering Basics
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).