Question

For questions (21-36), put a circle around the correct option. In the event that you feel your selected answer is wrong, cross out neatly and circle the correct option. 21. Which of the following statement(s) is/are correct about an adiabatic process: a) it occurs at a constant volume (b) it occurs at both constant temperature and pressure e) it occurs with exchange of heat with its surroundings id None of the above 22. The more stable system with regard to AS are systems that have (a) minimum AS (b) zero as (c) maximum AS d None of the above 23. Rate of chemical reaction is independent of the concentration of reactants for (a) zero order reaction (b) third order reaction (c) consecutive reaction (d) none of these The following statement applies to questions 19- 22 only 50 g of steam at 120 C was allowed to condense completely, and then cooled to 20 C 24. The condensation occurs at the following condition: (a) Constant molar volume and o) Constant temperature and pressure o) Constant temperature and volume (d Isovolumic condensation only pressure 2s. The phase of the final product is: a) Vapour phase (b) Liquid phase o) Mixed vapour-liquid phase a) Solid phase 26 Heat given off during the condensation is calculated as product of a) Mass, specific heat of water and temperature difference (b) Mass and enthalpy of vaporization of water (c) Mass, enthalpy of vaporization of water and temperature difference (d) Mass and specific heat of steam (e) None of the above 27. Select an incorrect statement relating to a Carnot cycle: a)There are two adiabatic processes (b) There are two constant-pressure processes

Answer 1

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