The reaction 2 NO(g) + O₂(g) → 2 NO₂(g) was studied at constant temperature

CHEMISTRY · Single correct · A Level · Chemistry · Rate equations · Rate equations

Problem

The reaction 2 NO(g) + O₂(g) → 2 NO₂(g) was studied at constant temperature, and the following initial-rate data were obtained.
Trial[NO] (M)[O₂] (M)Initial rate (M·s⁻¹)
10.0100.0201.2 × 10⁻⁴
20.0200.0204.8 × 10⁻⁴
What is the order of the reaction with respect to NO? (a) First order (b) Three-halves order \,(1.5) (c) Second order (d) Zero order

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