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You are given the following two reaction...

You are given the following two reactions : `CH_(4(g))+2O_(2(g))rarrCO_(2(g))+2H_2O_((g))` `DeltaH=-890.4kJ`, `2HgO_((s)) rarr2Hg_((l)) +O_(2(g))` `DeltaH=+181.6kJ` Which one of the following statements is correct?

A

Both reactions are exothermic

B

Both reactions are endothermic

C

Reaction: is endothermic and is exothermic

D

Reaction: is exothermic and is endothermic

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CHETANA PUBLICATION-Chemical Thermodynamics-EXERCISE
  1. During the evaporation of a liquid,

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  2. For an endothermic reaction,where DeltaH represents the enthalpy of th...

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  3. You are given the following two reactions : CH(4(g))+2O(2(g))rarrCO(2(...

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  4. The activation energy of exothermic reaction is 20 kj. The heat of the...

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  5. Translational energy is not prossessed by

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  6. The internal energy of a system can be changed by

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  7. The change in the internal energy of a system for 1 mole of a gas is e...

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  8. The molar heat capacity of water is if its specific heat capacity is 4...

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  9. For two moles of an ideal gas, which of the following is true?

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  10. Which of the following is true?

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  11. The molar heat capacity of water is if its specific heat capacity is 4...

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  12. Calculate the heat of reaction at 298 K for the reactionC2H(4(g)) + H2...

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  13. The enthalpies of elements in their standard states are taken as

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  14. The standard heat of formation of diamond is

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  15. Which of the following values of DeltafH represents the least stable p...

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  16. The enthalpies of formation of N2O and NO at 298 K are 82 and 90 kJ mo...

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  17. The latent heat of vaporization of a liquid at 500 K at1atm pressure i...

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  18. For a gaseous reaction involving complete combustion of isobutane,

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  19. The difference between DeltaH and DeltaU for the combustion of methane...

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  20. Enthalpy of combustion of carbon is -395 kj.The amount of carbon neede...

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