16751. For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would
16752. Which of the following has the minimum value of COP for a given refrigeration effect?
16753. __________ decreases during adiabatic throttling of a perfect gas.
16754. Dividend paid is shown by a Company in
16755. Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
16756. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
16757. Clausius - Clayperon equation is applicable to __________ equilibrium processes.
16758. In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc ?
16759. After throttling, gas temperature
16760. The chemical potential for a pure substance is __________ its partial molal free energy.
16761. When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is
16762. COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about
16763. The number of degrees of freedom for a mixture of ice and water (liquid) are
16764. On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will
16765. Domestic refrigerator usually works on the __________ refrigeration cycle.
16766. Gibbs-Duhem equation
16767. Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is
16768. The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its
16769. "When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs". This phenomenon is related to the
16770. The internal energy of an ideal gas does not change in a reversible __________ process.
16771. A/an __________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor.
16772. In a P-V diagram (for an ideal gas), an isothermal curve will coincide withan adiabatic curve (through a point), when
16773. For an ideal gas, the chemical potential is given by
16774. 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
16775. In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by
16776. Entropy change for an irreversible isolated system is
16777. Which is french currency?
16778. Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.
16779. The unit of equilibrium constant of a chemical reaction is the same as that of
16780. Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?
16781. The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is
16782. Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.
16783. Entropy is a/an
16784. In the reaction, represented by, 2SO2 + O2 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured by
16785. At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be
16786. 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is
16787. Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are
16788. Which of the following is not correct for a reversible adiabatic process ?
16789. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by
16790. Throttling (Joule-Thomson effect) process is a constant __________ process.
16791. Boiling of liquid is accompanied with increase in the
16792. Change of state namely evaportation condensation, freezing and melting is an __________ process.
16793. Which of the following is not an equation of state?
16794. A gas shows deviation from ideal behaviour at
16795. The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is
16796. The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
16797. With increase in temperature, the internal energy of a substance
16798. It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions.
16799. The first Council of Jainism to compile the canon was held at?
16800. The work done in isothermal compression compared to that in adiabatic compression will be