Chemical Engineering Thermodynamics
In the reaction, H₂ +I₂ ⇋ 2HI, addition of an inert gas will

Increase the partial pressure of H₂
Increase the total pressure and hence shift the equilibrium towards the right
Not effect the equilibrium conditions
Increase the partial pressure of I₂

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Chemical Engineering Thermodynamics
It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions.

Work alone can not bring out such a change of state
The amount of work needed is independent of path
More information is needed to conclude anything about the path dependence or otherwise of the work needed
The amount of work needed is path dependent

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Chemical Engineering Thermodynamics
Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which

Two liquids are completely separated into two layers
A homogeneous solution (say of phenol water) is formed
None of these
Mutual solubility of the two liquids shows a decreasing trend

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Chemical Engineering Thermodynamics
The second law of thermodynamics states that

The energy change of a system undergoing any reversible process is zero
The total energy of system and surrounding remains the same
It is not possible to transfer heat from a lower temperature to a higher temperature
None of these

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