for wat reaction does the half-life get longer as the initial concentration increases?& Y? Here's choices?

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for wat reaction does the half-life get longer as the initial concentration increases?& Y? Here's choices?

a. Zero Order
b. first order
c. second order
d. none of them

2007-06-26 09:52:07 · 3 answers · asked by nismo man 1 in Science & Mathematics ➔ Chemistry

3 answers

A. Zero order reactions take place at a steady rate. If you have more material, the time until half remains is greater.

For first order reaction, HalfLife=constant*ln(1/2), for ALL concentrations. I think the half-life decreases for second order, but I'd have to find a book or derive it...

2007-06-26 10:00:02 · answer #1 · answered by Shawn A 3 · 0⤊ 0⤋

2007-07-04 11:01:39 · answer #2 · answered by cozy 1 · 0⤊ 1⤋

2007-06-26 16:59:22 · answer #3 · answered by GTB 7 · 0⤊ 1⤋