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5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
For an exothermic reaction
  • ✓
    $H$ of the products is less than $H$ of the reactants
  • B
    $H$ of the products is more than $H$ of the reactants
  • C
    $H$ of the products is equal to $H$ of the reactants
  • D
    $\Delta H$ is always positive
✓

Answer

Correct option: A.
$H$ of the products is less than $H$ of the reactants
(a)${H_{{\rm{product}}}} \times {H_{{\rm{reactant}}}}$ for exothermic reaction.

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