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Heat exchanged in a chemical reaction at...

Heat exchanged in a chemical reaction at constant temperature and pressure is called

A

entropy change

B

enthalpy change

C

internal energy change

D

free energy change

Text Solution

Verified by Experts

The correct Answer is:
B
Enthalpy change is the heat exchanged at constant tempertaure and pressure.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  6. The molar heat capacity of water at constant pressure, C(P) , is 75 JK...

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  7. What is the entropy change (in JK^(-1)mol^(-1)) when one mole of ice i...

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  8. For which one of the following equation is DeltaH(reaction)^(@) equal ...

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  9. If a 298K the bond energies of C-H,C-C,C=C and H-H bonds are respectiv...

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  10. The enthalpy change for a reaction does not depend upon:

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  11. In an irreversible process taking place at constant T and P and in whi...

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  12. The internal energy change when a system goes fromk state A to B is 40...

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  13. The correct relationship between free energy change in a reaction and ...

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  14. The enthalpies of formation of Al(2)O(3) and Cr(2)O(3) are -1596KJ and...

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  15. Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectivel...

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  16. Heat liberated when 100 mL of 1 N NaOH is neutralised by 300 mL of 1 N...

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  17. Which of the following has DeltaS^(@) greater than zero

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  18. The system in which there is no exchange of matter, work, or energy fr...

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  19. A gas can expand from 100 mL to 250 mL under a constant pressure of 2 ...

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  20. Hess's law states that

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