The reaction between ethyl bromide (c2h5br) and hydroxide ion in ethyl alcohol is shown below at 330 k. c2h5br(alc) + oh −(alc) → c2h5oh(l) + br−(alc) the reaction is first order each in ethyl bromide and hydroxide ion. when [c2h5br] is 0.0478 m and [oh − ] is 0.162 m, the rate of disappearance of ethyl bromide is 2.8 10-7 m/s.

what is the value of the rate constant?