Chemical Engineering :: Process Control and Instrumentation
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For the reversible exothermic reaction, N2 + 3H2
2NH3, increase of pressure would -
Which of the following has the minimum value of COP for a given refrigeration effect?
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__________ decreases during adiabatic throttling of a perfect gas.
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Pick out the wrong statement.
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Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
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Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
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Clausius - Clayperon equation is applicable to __________ equilibrium processes.
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In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc ?
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After throttling, gas temperature
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The chemical potential for a pure substance is __________ its partial molal free energy.
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A.
Minimum number of degree of freedom of a system is zero.
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B.
Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and hydrogen is 4.
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C.
For a two phase system in equilibrium made up of four non-reacting chemical species, the number of degrees of freedom is 4.
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D.
Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation.
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