Chemical Engineering :: Chemical Engineering Thermodynamics
- dW and dq are not the exact differential, because q and W are
- Pick out the correct statement.
- Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?
- For an exothremic reaction
- For an ideal gas, the enthalpy
- Refrigerants commonly used for domestic refrigerators are
- Which of the following is true for Virial equation of state?
- A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of
- Pick out the wrong statement.
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A.
Like internal energy and enthalphy, the absolute value of standard entropy for elementary substances is zero |
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B.
Melting of ice involves increase in enthalpy and a decrease in randomness |
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C.
The internal energy of an ideal gas depends only on its pressure |
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D.
Maximum work is done under reversible conditions |