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Thermodynamics question

2023 · 6 Apr · Shift 2 · Q18

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JEE Main
Chemistry
Thermodynamics
2023 · 6 Apr · Shift 2 · Q18

Thermodynamics question

2023 · 6 Apr · Shift 2 · Q18

JEE MainChemistryThermodynamicsNumerical+4 / −1

Consider the following data Heat of combustion of

\mathrm{H}_{2}(\mathrm{g})\quad\quad=-241.8 \mathrm{~kJ} \mathrm{~mol}^{-1}

Heat of combustion of

\mathrm{C}(\mathrm{s})\quad\quad=-393.5 \mathrm{~kJ} \mathrm{~mol}^{-1}

Heat of combustion of

\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\mathrm{l})\quad=-1234.7 \mathrm{~kJ}~{\mathrm{mol}}^{-1}

The heat of formation of

\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\mathrm{l})

is

(-)

\underline{\hspace{2cm}}

\mathrm{kJ} ~\mathrm{mol}^{-1}

(Nearest integer).

Numerical answer

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