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For an exothermic reaction, DeltaH is po...

For an exothermic reaction, `DeltaH` is positive.

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In exothermic reaction

For an edothemic reaction, DeltaH is positive.

Assertion : DeltaH for an exothermic reaction is negative nad for an endothermic reaction is positive. Reason : Enthalpy is an extensive property.

In exothermic reaction, the reactants

CENGAGE CHEMISTRY-THERMODYNAMICS-Exercises (True/False)
  1. The terms bond enthalpy and bond dissociation enthalpy stand for one a...

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  2. At 298K, the enthalpy of combustion of CH(4) corresponds to the reacti...

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  3. For an exothermic reaction, DeltaH is positive.

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  4. For an edothemic reaction, DeltaH is positive.

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  5. Calorific value of fat

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  6. It is possible to calculate the value of DeltaH for the reaction H(2...

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  7. The enthalpy of combustion of dimond and enthalpy of formation of carb...

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  8. The SI unit of heat is 'calorie'.

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  9. Can we measure the absolute value of internal enegry?

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  10. w is positive when the work is done on the system.

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  11. Heat of combustion is the amount of heat evolved when the number of mo...

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  12. The heat of neutralisation of HCI with NaOH is same as that of HNO(3) ...

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  13. The heat of neutralisation becomes large if either the acid or the bas...

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  14. The total amount of heat evolved or absorbed in a reaction depends upo...

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  15. A spontaneous process is a process which is instaneous.

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  16. A process which is accompained by decrease of energy is not always spo...

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  17. The dissolution of ammonium chloride in water is an endothermic proces...

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  18. For the equilibrium , DeltaG = - RT In K.

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  19. For the combustion of benzene to gaseous carbon dioxide and liquid wat...

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  20. Melting of ice involves increases in randomness and increase in enthal...

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