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If for a given substance, melting point ...

If for a given substance, melting point is `T_(B)` and freezing point is `T_(A)` then correct variation of entropy is by graph between entropy change and temperature is

A

B

C

D

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Verified by Experts

The correct Answer is:
A
For a pure substance `T_(A)` and `T_(B)` represent the same temperature. Hence `A` is a correct choice.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. The free energy change for a reversible reaction at equilibrium is

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  2. Which of the following conditions regarding the chemical process ensur...

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  3. If for a given substance, melting point is T(B) and freezing point is ...

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  4. When 1 mole of gas is heated at constant volume. Temperature is raised...

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  5. Enthalpy of CH(4)+(1)/(2)O(2)rarrCH(3)OH is negative. If enthalpy of...

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  6. The heat required to raise the temperature of a body by 1 K is called

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  7. A heat engine absorbs heat Q(1) at temperature T(1) and Q(2) at temper...

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  8. An endotthermic reaction is non-spontaneous at freezing point of water...

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  9. Compounds with high heat of formation are less stable because

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  10. Which of the following statements is true ?

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  11. The intensive property among these quantities is

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  12. An adiabatic expansion of an Ideal gas always has

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  13. The favourable conditions for a spontaneous reaction are

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  14. In a closed insulated container, a liquid is stirred with a paddle to ...

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  15. C("diamond")toC("Graphite"), DeltaH=-ve. Then shows that

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  16. If a reaction involves only solids and liquid, which of the following ...

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  17. Mechanical work is specially important in systems that contain

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  18. The law formulated by Nernst is

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  19. Heat exchanged in a chemical reaction at constant temperature and pres...

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  20. Heat of combustion DeltaH^(@) for C(s),H(2)(g) and CH(4)(g) are 94, -6...

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