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Thermodynamics question

2025 · Q109
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Thermodynamics question

2025 · Q109

NEETChemistryThermodynamicsMCQ+4 / −1

C(s)+2H2( g)→CH4( g);ΔH=−74.8 kJ mol−1\mathrm{C}(\mathrm{s})+2 \mathrm{H}_2(\mathrm{~g}) \rightarrow \mathrm{CH}_4(\mathrm{~g}) ; \Delta \mathrm{H}=-74.8 \mathrm{~kJ} \mathrm{~mol}^{-1}C(s)+2H2​( g)→CH4​( g);ΔH=−74.8 kJ mol−1. Which of the following diagrams gives an accurate representation of the above reaction? [ R→\mathrm{R} \rightarrowR→ reactants; P→\mathrm{P} \rightarrowP→ products]

  1. A
    NEET 2025 Chemistry - Thermodynamics Question 1 English Option 1
  2. B
    NEET 2025 Chemistry - Thermodynamics Question 1 English Option 2
  3. C
    NEET 2025 Chemistry - Thermodynamics Question 1 English Option 3
  4. D
    NEET 2025 Chemistry - Thermodynamics Question 1 English Option 4
View written solutionFree

Correct answer: C

$\Delta \mathrm{H}=-74.8 \mathrm{k} \mathrm{J} \mathrm{mol}^{-1}$, it is an exothermic reaction.

So, accurate representation is

NEET 2025 Chemistry - Thermodynamics Question 1 English Explanation
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