The second law of thermodynamics states that
The energy change of a system undergoing any reversible process is zero
It is not possible to transfer heat from a lower temperature to a higher temperature
The total energy of system and surrounding remains the same
None of the above
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- For an exothermic reaction
- With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure
- Free energy change at equilibrium is
- For a given substance at a specified temperature, activity is __________ to fugacity.
- For a reversible process involving only pressure-volume work
- Activity co-efficient is a measure of the
- Partial molar free energy of an element A in solution is same as its
- At equilibrium condition, the chemical potential of a material in different phases in contact with each…
- For an isothermal reversible compression of an ideal gas
- In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured…
- Entropy of an ideal gas depends upon its
- The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by
- Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression…
- A system is said to be at equilibrium, if the entropy of the system has reached __________ value.
- The chemical potential for a pure substance is __________ its partial molal free energy.
- First law of thermodynamics is mathematically stated as
- The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature…
- If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________…
- For organic compounds, group contribution method can be used for the estimation of
- When a system is in equilibrium for all possible processes, the differential or finite change of entropy…
- For a thermodynamic system containing 'x' chemical species, the maximum number of phases that can co-exist…
- For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would
- Pick out the Clausius-Clapeyron equation from the following:
- Normal temperature and pressure (N.T.P.) corresponds to
- Absorption/evolution of heat during conversion of a substance from one allotropic form to another is…
- For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion…
- At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy…
- The unit of fugacity is the same as that of the
- If different processes are used to bring about the same chemical reaction, the enthalpy change is same…
- Fugacity is most helpful in