Arrhenius plot: ln k vs 1/Tआरेनियस आलेख: ln k बनाम 1/TArrhenius plot: ln k vs 1/T

NCERT Fig 3.10 · Class 12 Chemistry · Chapter 3 · interactive diagram

Parts and what they mean

• ln k vs 1/T is a straight line (ln k बनाम 1/T सरल रेखा) — From k = A e^(−Ea/RT): ln k = −Ea/RT + ln A. Points = k measured at different temperatures.
• Slope = −Ea/R (ढलान = −Ea/R) — Ea = −slope × R (R = 8.314 J K⁻¹ mol⁻¹). Steeper line → larger Ea → rate more sensitive to temperature.
• Intercept = ln A (अंतःखंड = ln A) — A = Arrhenius factor (frequency factor / pre-exponential factor), constant for a reaction.
• Dashed: extrapolation to 1/T = 0 (डैश: 1/T = 0 तक बढ़ाई गई रेखा) — Experiments cannot reach 1/T = 0; the line is extended to read ln A.
• ln k vs 1/T (ln k बनाम 1/T) — Use log k = −Ea/(2.303RT) + log A for base-10 logs.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 3.10. Report a mistake