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प्रश्न
What is the usual definition of entropy?
उत्तर
- Entropy is a thermodynamic state function that is a measure of the randomness or disorderliness of the system.
- For a reversible change taking place at a constant temperature (T). the change in entropy
- The system is equal to heat energy absorbed or evolved (q) by the system divided by the constant temperature (T).
`Δ"S"_"sys" = "q"_"rev"/"T"`
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संबंधित प्रश्न
The correct thermodynamic conditions for the spontaneous reaction at all temperature is
∆S is expected to be maximum for the reaction
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- Enthalpy
- Entropy
- Heat
- Temperature
- Work
- Free energy
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| Liquid | Boiling points (°C) | ΔH (kJ mol−1) |
| Ethanol | 78.4 | + 42.4 |
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| Toluene | 110.6 | + 35.2 |
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