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JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

Consider the following first order gas phase decomposition reaction at 500°C: . The half-life of the reaction is 69.3 s. If gas A is enclosed in a container and the initial pressure is 0.5 atm, total pressure of this system after 115 s will be atm. [Given: ]

Answer: 0.84

Solution

. (since total pressure , so remaining pressure ):

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Question ID VK-144644