Engineering Thermodynamics
Extensive property of a system is one whose value

Is dependent on the path followed and not on the state
Is not dependent on the path followed but on the state
Does not depend on the mass of the system, like temperature, pressure, etc.
Depends on the mass of the system like volume

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Engineering Thermodynamics
Carbonization of coal consists of

Moulding the finely ground coal under pressure with or without a binding material
None of these
Heating the wood with a limited supply of air to temperature not less than 280°C
Drying and crushing the coal to a fine powder

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