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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

Solid calcium bicarbonate decomposes as: Ca(HCO_3)_2(s) \rightleftharpoons CaCO_3(s) + CO_2(g) + H_2O(g). The total pressure is 0.2 bar at 444 K. Calculate the value of for this reaction in kJ/mol (take ).

Answer: 17

Solution

and form in a 1:1 ratio, so bar each.

= ×

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Question ID VK-136593