Q461
Open questionThe partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of
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Chemical Engineering Thermodynamics
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Q462
Open questionWhich of the following behaves most closely like an ideal gas?
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Q463
Open questionThe internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its
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Q464
Open questionGibbs free energy of mixing at constant pressure and temperature is always
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Q465
Open questionHeating of water under atmospheric pressure is an __________ process.
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Q466
Open questionPartial molar free energy of an element A in solution is same as its
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Q467
Open questionThe absolute entropy for all crystalline substances at absolute zero temperature is
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Q468
Open questionEquilibrium constant decreases as the temperature
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Q469
Open questionA solid is transformed into vapour without going to the liquid phase at
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Q470
Open questionThe number of degrees of freedom at the triple point of water is
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Q471
Open questionSpecific __________ does not change during phase change at constant temperature and pressure.
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Q472
Open questionTea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
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Q473
Open questionWhich of the following is an extensive property of a system?
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Q474
Open questionThe expression for entropy change, ΔS = nCp.ln is valid for the __________ of a substance.
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Q475
Open questionWhen a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the
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Q476
Open questionDryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.
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Q477
Open questionSteam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg.K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg.K, entropy of saturated vapour = 7.2234 kJ/kg.K) The exit condition of steam is
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Q478
Open questionThe extensive properties are
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Q479
Open questionThe intensive properties are
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Q480
Open questionWhich of the following has the least thermal efficiency?
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