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Hess's law of constant heat summation is...

Hess's law of constant heat summation is bases on

A

`E=mc^(2)`

B

Conservation of mass

C

First law of thermodynamics

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
Hess.s law is an application of first law of thermodynamics.
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ERRORLESS-THERMODYNAMICS AND THERMOCHEMISTRY-NCERT Based Questions (First Law of Thermodynamics and Hess Law)
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  4. According to Hess's law , the heat of reaction depends upon

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  7. The sublimation energy of I(2) (solid) is 57.3 KJ/mole and enthalpy o...

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  8. The following thermochemical reactions are given : M+(1)/(2)O(2)to M...

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

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  10. On the basic of thermochemical equations (I),(II)and (III), Find out w...

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  11. The reaction A to B , DeltaH=+24 kJ//"mole". For the reaction B to C, ...

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  12. The enthalpy of neutralization of HCN by NaOH is - 12.13 kJ mol^(-1). ...

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  13. One mole of magnesium in the vapor state absored 1200 kJ mol^(-1) of e...

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  14. For the change,C("diamond") rarr C("graphite"), Delta H = -1.89 kJ , i...

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  15. Given R = 8.314 J K^(-1) "mol"^(-1), the work done during combustion...

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  16. Work done during isothermal expansion of one mole of an ideal gas form...

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