Thermodynamics for Chemical Quiz 2

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Thermodynamics for Chemical Quiz 2

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At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (?) is given by (where, ? = standard chemical potential at unit fugacity (f? = 1 atm.) and the gas behaves ideally.) ?

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Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are________?

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Air-refrigeration cycle_________?

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Answer: Option B 392. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27?C, the temperature should be raised to ______ ?C?

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Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates___________?

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An ideal liquid refrigerant should________?

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At normal boiling point, molar entropy of vaporisation is ______ Joule/K?.mole?

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At absolute zero temperature, the ______ of the gas is zero?

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Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is ? 57?C and 5.2 atm) ?

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All gases except _____ shows a cooling effect during throttling process at atmospheric temperature and pressure?

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Co-efficient of Performance (COP) of a refrigerator is the ratio of the ________?

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As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is__________?

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As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches______?

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Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is_____?

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Chemical engineering thermodynamics is concerned with the _____ in/of chemical processes?

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Clausius-Clapeyron equation is applicable to ______ equilibrium processes?

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Compound having large heat of formation is_______?

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Clapeyron Equation deals with the______?

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At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be_________?

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Clausius-Clapeyron Equation gives accurate result, when the ___________?

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Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is_________?

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Charles? law for gases states that___________?

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Any substance above its critical temperature exists as _______?

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Activity co-efficient is a measure of the______?

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As the temperature is lowered towards the absolute zero, the value of ?(?F)/?T, then approaches_________?

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At a given temperature, the volume of a gas dissolved in a solvent ________ with increase in pressure?

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Boyle?s law for gases states that______?

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As the temperature is lowered towards the absolute zero, the value of the quantity (??F/?T) approaches_________?

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Compressibility factor of a gas is_____?

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Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is _____?

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At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is______?

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Claude?s liquefaction process employs the cooling of gases by___________?

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At the critical point of a substance_____?

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Claude gas liquefaction process employs cooling_____?

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Chemical potential of ith component of a system is given by_________?

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Boiling of liquid is accompanied with increase in the___________?

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Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of _______?

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An isentropic process is carried out at constant______?

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All gases during throttling process at atmospheric temperature and pressure show a cooling effect except___________?

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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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An isolated system can exchange _______ with its surroundings?

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An irreversible process______?

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Chemical potential is a/an_______?

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At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is______?

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After throttling, gas temperature_____?

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Adiabatic compression of a saturated water vapour makes it ______ ?

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Change of state namely evaporation condensation, freezing and melting is an ________ process?

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At 60? C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60? C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is___________?

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At a given temperature, the volume of a gas dissolved in a solvent ________ with increase in pressure?

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Compressibility factor for almost all the gases are approximately same at the same___________?

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