NEET UG CHEMISTRY MCQ: THERMODYNAMICS

1 Easy

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Application +4 | -1

For which one of the following system

\Delta H > \Delta E

View answer and explanation

Correct option: C

2N{H_{3\left( g \right)}} \to {N_{2\left( g \right)}} + 3{H_{2\left( g \right)}}

Option C (

2N{H_{3(g)}} \to {N_{2(g)}} + 3{H_{2(g)}}

) is correct because the number of moles of gaseous products is greater than the number of moles of gaseous reactants, leading to a positive

\Delta H - \Delta E

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{T_i}

{T_f}

\mathrm{H}_2 \mathrm{O}(\mathrm{s}) \rightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})

\mathrm{X}_2 \mathrm{O_4(l}) \longrightarrow 2 \mathrm{XO}_2(\mathrm{g}), \Delta U=2.1 \mathrm{~kcal}, \Delta S=20 \mathrm{~cal} \mathrm{~K}^{-1}

300 \mathrm{~K}

\Delta G