Discussion :: Chemical Engineering Thermodynamics
- Pick out the wrong statement.
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A.
Cp of monoatomic gases such as metallic vapor is about 5 kcal/kg. atom |
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B.
The heat capacity of solid inorganic substance is exactly equal to the heat capacity of the substance in the molten state |
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C.
There is an increase in entropy, when a spontaneous change occurs in an isolated system |
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D.
At absolute zero temperature, the heat capacity for many pure crystalline substances is zero |
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Answer : Option B
Explanation :
The heat capacity of the solid, liquid and gases are different and usually the liquid have higher heat capacity than solids as liquids can absorb more heat as the molecules put the energy into both translational and vibrational kinetic energy. Whereas in solids the energy is put only in vibrational energy.
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