EXAMIANS
The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is
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Joule-Thomson experiment is
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The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is
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Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.
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A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is
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At absolute zero temperature, all substances have the same
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The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for
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Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be
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Requisites of a reversible process is that the
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For organic compounds, group contribution method can be used for the estimation of
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