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Which of the following statements is cor...

Which of the following statements is correct ?

A

The presence of reacting species in a covered beaker is an example of open system

B

There is an exchange of energy as well as matter between the system and the surroundings in a closed system

C

The presence of reactants in a closed vessel made up of copper is an example of a closed system

D

The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-THERMODYNAMICS-Multiple Choice Questions (Level-II)
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  3. Which of the following statements is correct ?

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  4. The volume of gas is reduced to half from its original volume. The spe...

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  5. Delta(f)U^(@) of formation of CH(4)(g) at certain temperature is - 393...

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  6. In an adiabatic process, no transfer of heat takes place between syste...

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  7. The enthalpies of elements in their standard states are taken as zero....

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  8. Enthalpy of sublimation of a substance is equal to

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  9. Which of the following is not correct ?

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  10. On the basis of thermochemical equation (a), (b) and (c ), which of th...

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  11. The standard free energy changes (Delta G^(@)) is related to equilibri...

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  12. If Delta(f)G^(@) for NH(3)(g) is - 16.4 kJ mol^(-1), then Delta G^(@) ...

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  13. A cylinder of gas supplied by Bharat Petroleum is assumed to contain 1...

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  14. Given : C(2)H(6)(g) rarr 2C(g) + 6H(g) : Delta H = 712 kcal The C ...

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  15. Four grams of graphite is burnt in a bomb calorimeter of heat capacity...

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  16. A chemical reaction is spontaneous at 298 K but non-spontaneous at 350...

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  17. The bond energies of of C - C, C = C, H - H and C - H linkages are 350...

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  18. Two moles of an ideal gas is expanded isothermally and reversible from...

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  19. To neutrealize completely 20 mL of 0.1 M aqueous solution of phosphoru...

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  20. The rusting of iron takes place as follows : 2H^(+) + 2e^(-) + (1)/(...

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