1. Also called the hidden web and deepnet, the deep web is where search engines have not indexed the information, and so âinvisibleâ to the mainstream public.
The integrated rate law for the zero-order reaction A âB is [A] t = [A] 0 â kt. (a) Sketch the following plots: (i) rate versus [A] t and. (ii) [A] t versus t. (b) Derive an expression for the half-life of the reacÂ­tion. (c) Calculate the time in half-lives when the inÂ­tegrated rate law is no longer valid, that is, when [A] t = 0. STEP-BY-STEP SOLUTION. JavaScript Not Detected. JavaScript is required to view textbook solutions.
For a typical second-order reaction with rate equation, if the concentration of reactant B is constant then, where the pseudoâfirst-order rate constant. The second-order rate equation has been reduced to a pseudoâfirst-order rate equation, which makes the treatment to obtain an integrated rate equation much easier. For example, the hydrolysis of sucrose in acid solution is often cited as a first-order reaction with rate. The true rate equation is third-order, ; however, the concentrations of both the catalyst H + and the solvent H 2 O are normally constant, so that the reaction is pseudoâfirst-order.