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For an exothermic reaction DeltaH(r) va...

For an exothermic reaction `DeltaH_(r)` value will be ……………

A

`+Ve`

B

`-Ve`

C

Zero

D

infinity

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The correct Answer is:
B
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SURA PUBLICATION-THERMODYNAMICS -ADDITIONAL QUESTIONS
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  2. Heat absorbed at constant volume is measured in ……….. Calorimeter.

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  3. For an exothermic reaction DeltaH(r) value will be ……………

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  4. The heat of neutralisation of strong acid and strong base is …………..

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  5. The SI unit of entropy is ………….

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  6. The change in enthalpy when one mole of C("diamond") " to " C ("graph...

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  7. Hess's law can be applied to calculate ……….of reactions.

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  8. Change in enthalpy is

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  9. The change in enthalpy of NaOH+HClrarrNaCl+H(2)O is called ………

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  10. % efficiency can be calculated using the formula

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  11. If an automobile engine burns petrol at a temperature of 816^(@)C and...

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  12. which of the following processes are accompanied by an increase of ent...

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  13. The enthalpies of all elements in their standard states are

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  14. A reaction , A+B rarrC+D+q is found to have a positive entropy change ...

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  15. Thermodynamics does not deal with

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  16. Which of the following statement is /are correct ? (i) The presence ...

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  17. When water freezes in a glass beaker , DeltaS of the system …………

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  18. What is correct about DeltaG ?

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  19. DeltaG^(@) of reversible reaction at its equilibrium is

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  20. In an exothermic reaction, heat is evolved and system loses heat to th...

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