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A first order reaction is 75 % complete in 56 minutes… | StemPy Lab

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A first order reaction is 75 % complete in 56 minutes. What fraction of the reactant is left after 140 minutes?

ChemistryMediumHigh School (11–12)Chemical Kinetics › Temperature, the Arrhenius Equation and Collision Theory NEET AP A-Level IB

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A first order reaction is $75\ \%$ complete in $56$ minutes. What fraction of the reactant is left after $140$ minutes?

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← Statement I: The order of a reaction can be zero or a fraction. Statement II: The molecularity of an elementary step can be 1, 2 or 3, and never a fraction. Choose the correct option.A zero order reaction starts with 72 mmol/L of the reactant, and its rate constant is 6 mmol L⁻¹ min⁻¹. After how long is half of the reactant left? →

More onChemical Kinetics › Temperature, the Arrhenius Equation and Collision Theory

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