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MCQ

Question

A first-order gaseous reaction has an initial pressure of 2.4 atm. After 40 s, the total pressure is 3.0 atm. What is the rate constant?

Choose one · Correct answer highlighted

0.0058 s⁻¹ 0.0096 s⁻¹ 0.0072 s⁻¹ Correct 0.0115 s⁻¹

x = 0.6, pA = 1.8. k ≈ 0.0072 s⁻¹.

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