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Thermodynamics question

2023 · 1 Feb · Shift 2 · Q20

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JEE Main
Chemistry
Thermodynamics
2023 · 1 Feb · Shift 2 · Q20

Thermodynamics question

2023 · 1 Feb · Shift 2 · Q20

JEE MainChemistryThermodynamicsNumerical+4 / −1

0.3 \mathrm{~g}

of ethane undergoes combustion at

27^{\circ} \mathrm{C}

in a bomb calorimeter. The temperature of calorimeter system (including the water) is found to rise by

0.5^{\circ} \mathrm{C}

. The heat evolved during combustion of ethane at constant pressure is

\underline{\hspace{2cm}}\mathrm{kJ} ~\mathrm{mol}{ }^{-1}

. (Nearest integer) [Given : The heat capacity of the calorimeter system is

20 \mathrm{~kJ} \mathrm{~K}^{-1}, \mathrm{R}=8.3 ~\mathrm{JK}^{-1} \mathrm{~mol}^{-1}

. Assume ideal gas behaviour. Atomic mass of

\mathrm{C}

and

\mathrm{H}

are 12 and

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

respectively]

Numerical answer

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