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Thermodynamics question

2023 · 10 Apr · Shift 1 · Q9
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  5. /2023 · 10 Apr · Shift 1 · Q9

Thermodynamics question

2023 · 10 Apr · Shift 1 · Q9

JEE MainChemistryThermodynamicsMCQ+4 / −1

Given

(A) 2CO(g)+O2(g)→2CO2(g)\mathrm{2CO(g)+O_2(g)\to 2CO_2(g)}2CO(g)+O2​(g)→2CO2​(g) ΔH10=−x kJ mol−1\mathrm{\Delta H_1^0=-x~kJ~mol^{-1}}ΔH10​=−x kJ mol−1
(B) C(graphite)+O2(g)→CO2(g)\mathrm{C(graphite)+O_2(g)\to CO_2(g)}C(graphite)+O2​(g)→CO2​(g) ΔH20=−y kJ mol−1\mathrm{\Delta H_2^0=-y~kJ~mol^{-1}}ΔH20​=−y kJ mol−1

ΔH0\mathrm{\Delta H^0}ΔH0 for the reaction

C(graphite)+12O2(g)→CO(g)\mathrm{C(graphite)+\frac{1}{2}O_2(g)\to CO(g)}C(graphite)+21​O2​(g)→CO(g) is :

  1. A
    x−2y2\frac{x-2y}{2}2x−2y​
  2. B
    x+2y2\frac{x+2y}{2}2x+2y​
  3. C
    2y−x2y-x2y−x
  4. D
    2x−y2\frac{2x-y}{2}22x−y​
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