At 1000C, cyclobutane (C₄H₈) decomposes to two molecules of ethylene (C₂H₄). The rate constant for this reaction is 87 s^-1.

If the initial C₄H₈ concentration is 2.00 M, what is the concentration after 0.10 s?

C₄H₈ ➞ 2C₂H₄