The rate constant for the first-order decomposition of cyclobutane, C4​ H​ 8​ ​ at 500 °C is 9.2 × 10−​ 3​ s​−1 C4H8→ 2C2H4 How long will it take for 80.0% of a sample of C4​ ​H8​ ​ to decompose

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