Chemical Engineering

Quiz #447

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Chemical Engineering Quiz - 15 Questions

1

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__________________?
2

Hardening of steel is not possible, unless it is heated _________________ critical point ?
3

Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?

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