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Chemical Engineering Basics

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?

Chemical Engineering Basics /
Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?

A. +4000
B. -4000
C. 10000
D. -10000

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ? Read More »

Chemical Engineering Basics

Electrometallurgical methods of metal extraction is normally used for those metals___________________?

Chemical Engineering Basics /
Electrometallurgical methods of metal extraction is normally used for those metals___________________?

A. Whose oxide/ore is not reduced by carbon
B. Which fall in the category of alkali & alkaline earth metals
C. Which stands higher in the electrochemical series of the metal
D. All A, B. & C.

Electrometallurgical methods of metal extraction is normally used for those metals___________________? Read More »

Chemical Engineering Basics

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?

Chemical Engineering Basics /
Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?

A. Sorbite
B. Bainite
C. Martensite
D. Troostite

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________? Read More »

Chemical Engineering Basics

The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system_________________?

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

A. Is as light as possible
B. Has very high C.O.P.
C. Employs minimum quantity of refrigerant
D. Consumer minimum horse power

The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system_________________? Read More »

Chemical Engineering Basics