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Thermodynamics question

2022 · 26 Jul · Shift 1 · Q18

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JEE Main
Chemistry
Thermodynamics
2022 · 26 Jul · Shift 1 · Q18

Thermodynamics question

2022 · 26 Jul · Shift 1 · Q18

JEE MainChemistryThermodynamicsNumerical+4 / −1

2.4 \mathrm{~g}

coal is burnt in a bomb calorimeter in excess of oxygen at

298 \mathrm{~K}

and

1 \mathrm{~atm}

pressure. The temperature of the calorimeter rises from

298 \mathrm{~K}

to

300 \mathrm{~K}

. The enthalpy change during the combustion of coal is

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

. The value of

x

is

\underline{\hspace{2cm}}

. (Nearest Integer) (Given : Heat capacity of bomb calorimeter

20.0 \mathrm{~kJ} \mathrm{~K}^{-1}

. Assume coal to be pure carbon)

Numerical answer

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