Chemistry · 2022
JEE Main · 27 July 2022, Shift 2 · Q83
A gas (Molar mass =280 g mol^-1 ) was burnt in excess O_2 in a constant volume calorimeter and during combustion the temperature of calorimeter…
A gas (Molar mass $\displaystyle =280 \mathrm{~g} \mathrm{~mol}^{-1}$ ) was burnt in excess $\displaystyle \mathrm{O}_2$ in a constant volume calorimeter and during combustion the temperature of calorimeter increased from $\displaystyle 298.0$ K to $\displaystyle 298.45$ K. If the heat capacity of calorimeter is $\displaystyle 2.5 \mathrm{~kJ} \mathrm{~K}^{-1}$ and enthalpy of combustion of gas is $\displaystyle 9 \mathrm{~kJ} \mathrm{~mol}^{-1}$ then amount of gas burnt is \_\_\_\_ g. (Nearest Integer)
Official answer
35
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.