2NO + Br2 ----> 2NOBr This is second order NO and first order in Br2 Write the r

Question

2NO + Br2 ----> 2NOBr This is second order NO and first order in Br2 Write the rate expression for the reaction. If the concentration of Br2 is tripled, how will the reactionrate change? What happens to the reaction rate when the concentration of NOis doubled? 2NO + Br2 ----> 2NOBr This is second order NO and first order in Br2 Write the rate expression for the reaction. If the concentration of Br2 is tripled, how will the reactionrate change? What happens to the reaction rate when the concentration of NOis doubled?

Explanation / Answer

     2NO + Br2 ----> 2NOBr          The rateexpression for the reaction is,   Rate = K[NO]2[Br2]       When the concentration ofBr2 is tripled , the rate of the reaction will also betripled                     rate= K[NO]2 3 [Br2]                             =3K[NO]2[Br2]       When the concentration of NO isdoubled the rate of the reaction will be increased to fourtimes                    Letthe concentration of NO be 'x'       The new rate of thereaction is , rate = K[2x]2[Br2]                                                              = 4K[x]2[Br2]

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