Chemistry · Chemical Kinetics
A(g) → B(g) + C(g) is a first-order gas-phase reaction. The reaction is started with reactant A only. Total pressure of the system at time t is Pt and at infinite time is P∞. Which of the following expressions is correct for the rate constant k?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1k = 1t lnP∞P∞ - Pt
- 2k = 1t lnP∞2(P∞ - Pt)✓
- 3k = 1t lnP∞Pt
- 4k = 1t ln2(P∞ - Pt)Pt
Correct answer
k = 1t lnP∞2(P∞ - Pt)
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