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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
For the gas phase reaction  ${A_2}_{(g)} + {B_2}_{(g)} \rightarrow {2AB}_{(g)}$ taking place at constant pressure and temperature where all gases are behaving ideally which of the following must be correct
  • A
    $\Delta H = 0$
  • B
    $\Delta H \neq \Delta U$
  • C
    $\Delta G=0$ 
  • ✓
    ${\left[ {\frac{{\partial ({\Delta _r}H)}}{{\partial T}}} \right]_P} = 0$
✓

Answer

Correct option: D.
${\left[ {\frac{{\partial ({\Delta _r}H)}}{{\partial T}}} \right]_P} = 0$
d

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