Discussion :: Chemical Engineering Thermodynamics
- Pick out the wrong statement.
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A.
Surface tension of a substance vanishes at critical point, as there is no distinction between liquid and vapour phases at its critical point |
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B.
Entropy of a system decreases with the evolution of heat |
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C.
Change of internal energy is negative for exothermic reactions |
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D.
The accentric factor for all materials is always more than one |
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Answer : Option D
Explanation :
The acentric factor can’t always be greater than 1. For many monoatomic fluids the acentric factor is close to zero.
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