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Hess's law is an application of...

Hess's law is an application of

A

Zeroth law of thermodynamics

B

First law of thermodynamics

C

Second law of thermodynamics

D

Faradays law

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The correct Answer is:
B
First law of thermodynamics.
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MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (PREVIOUS YEARS ENTRANCE EXAMS)
  1. Which of the following is the largest unit?

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  2. The CORRECT equation for heat of formation of CO is

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  3. Hess's law is an application of

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  4. Heat of hydrogenation of ethylene is X and that of acetylene is Y, cha...

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  5. For the reaction, C(3)H(8(g)) +5O(2(g)) rarr 3CO(2(g)) + 4H(2)O((l))...

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  6. Which of the following process has no change in the internal energy ?

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  7. 1 mole of cone. HCl requires x moles of dil. NaOH for neutralization a...

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  8. Hess's law is based on

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  9. The energy required to break molecules into its constituent atoms is

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  10. Molar heat capacity at constant volume can be given as

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  11. Enthalpy of formation of two compounds x and Y are -84 kJ and -156 kJ ...

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  12. Which of the following equations show the relationship between heat of...

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  13. The thennodynamics process where no change in enthalpy takes place is

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  14. In a reaction, CO(2(g)) +H(2(g)) rarr CO((g)) +H(2)O((g)), Delta H=+2....

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  15. Heat of formation of H(2)O((l)), CO(2(g)) and C(2)H(4(g)) are -285.0, ...

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  16. Which of the following is the equation for first law of thermodynamics...

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  17. The work obtained in cyclic process is zero because

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  18. H(2) +Cl(2) rarr 2HCl" "Delta H =-184 kJ Delta H" for "36.5 xx 10^(-...

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  19. For formation of acetaldehyde, Delta n =

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  20. 32 g of O(2) expands from volume 10 dm^(3)" to "10 m^(3) against press...

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