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JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry

કાર્બન અને કાર્બન મોનોક્સાઇડની દહન ઉષ્માઓ અનુક્રમે \(- 393.5\) અને \(- 283.5\, kJ\, mol^{-1}\) છે. તો કાર્બન મોનોક્સાઇડની સર્જન ઉષ્મા (in \(kJ\)) શોધો.

  1. A \(-676.5\)
  2. B \(-110.5\)
  3. C \(110.5\)
  4. D \(676.5\)
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Answer & Solution

Correct Answer

(B) \(-110.5\)

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Detailed explanation

Many enthalpy changes are difficult to measure directly under standard conditions. Hess law states that the total enthalpy change of a reaction is independent of the route taken. To find \(H _{ f }, C _{( s )}+\frac{1}{2} O _{2}( g ) \rightarrow CO ( g )\) Given:- combustion of…
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