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You Are On Multi Choice Question Bank SET 331

16551. Entropy of the system decreases, when





16552. Extensive properties of a thermodynamic system depend upon the __________ of the system.





16553. The equation Tds = dE - PdV applies to





16554. If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.





16555. Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.





16556. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)





16557. Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.





16558. In the reaction, H2 +I2 2HI, addition of an inert gas will





16559. What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?





16560. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature.





16561. If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will





16562. All gases above its inversion temperature, in a throttling process will show





16563. First law of thermodynamics is mathematically stated as





16564. . ഭൗതികശാസ്ത്രത്തിനു നൊബേൽ പുരസ്കാരം ആദ്യമായി നേടിയ ഇന്ത്യക്കാരൻ, [. Bhauthikashaasthratthinu nobel puraskaaram aadyamaayi nediya inthyakkaaran,]




16565. Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas )




16566. Equation which relates pressure, volume and temperature of a gas is called the





16567. Claussius-Clayperon equation gives accurate result, when the





16568. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.





16569. The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the __________ of a substance.





16570. For a single component two phase mixture, the number of independent variable properties are





16571. __________ law of thermodynamics ascertains the direction of a particular spontaneous process.





16572. At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.





16573. For an ideal solution, the value of activity co-efficient is





16574. The expression, nCv(T2 - T1), is for the __________ of an ideal gas.





16575. The number of degrees of freedom at the triple point of water is





16576. Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?





16577. Internal energy is equal to the heat absorbed in case of a/an __________ process.





16578. The first law of thermodynamics is a restatement of the law of conservation of





16579. Joule-Thomson co-efficient for a perfect gas is





16580. In an adiabatic process, the





16581. A nozzle is a device, which





16582. Duringthe phase transition, __________ changes.





16583. The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.





16584. The value of gas constant 'R' is





16585. In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about __________ percent.





16586. Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)





16587. Who issues Accounting Standards in India?





16588. Partial molal quantities are important in the study of





16589. Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is





16590. Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which





16591. Which is not constant for an ideal gas ?


16592. Enthalpy 'H' is defined as





16593. One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one





16594. __________ functions are exemplified by heat and work.





16595. In an irreversible process





16596. What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?





16597. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is





16598. PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.





16599. Claude gas liquefaction process employs cooling





16600. The heat capacities for the ideal gas state depend upon the





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