The Arrhenius EquationHow rate constant varies with temperature.ChemistryThe rate constant depends exponentially ontemperature and activation energy.k = Ae^(−Ea/RT) · ln k = ln A − Ea/RTPlot ln k against 1/TGradient = −Ea/RStraight line.Higher EaMore temperature-sensitive10°C rise near room temperatureRoughly doubles many ratesA rule of thumb, not a law.THE COMMON MISTAKEUsing CelsiusT must be in kelvinThe equation is exponential in 1/T; using Celsius gives a meaningless or infiniteresult near zero.A is the pre-exponential factor, related to collision frequency andorientation. Ea is in J mol⁻¹ when R = 8.314.The Arrhenius Equationlearnposters.com
The Arrhenius Equation — printable physical science wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the The Arrhenius Equation poster

The rule, 3 worked examples, and the mistake everyone makes.

A is the pre-exponential factor, related to collision frequency and orientation. Ea is in J mol⁻¹ when R = 8.314.

Questions about the The Arrhenius Equation poster

What’s on the The Arrhenius Equation poster?
The rule, 3 worked examples, and the mistake everyone makes. The rate constant depends exponentially on temperature and activation energy.; k = Ae^(−Ea/RT) · ln k = ln A − Ea/RT; Plot ln k against 1/T = Gradient = −Ea/R; Higher Ea = More temperature-sensitive; 10°C rise near room temperature = Roughly doubles many rates; Common mistake: Using Celsius → T must be in kelvin. A is the pre-exponential factor, related to collision frequency and orientation. Ea is in J mol⁻¹ when R = 8.314.
Who is the The Arrhenius Equation poster for?
The Arrhenius Equation belongs to the Chemistry section rather than to a school year, because physical science is not something one grade owns. Anyone learning physical chemistry can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the The Arrhenius Equation poster?
Rate constant rises exponentially with temperature. That is why a small rise has a large effect. A wall chart earns its place by being glanceable from where the work is happening, so The Arrhenius Equation belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
What other posters go with The Arrhenius Equation?
Born-Haber Cycles, Equilibrium and Electrode Potentials sit alongside The Arrhenius Equation in the Chemistry section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Born-Haber CyclesEquilibriumElectrode Potentials
Is the The Arrhenius Equation poster free to download and print?
Yes. The Arrhenius Equation downloads as a free PDF with no account, no email and no watermark, like everything else in the Chemistry section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the The Arrhenius Equation poster print at?
The Arrhenius Equation is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of The Arrhenius Equation loses nothing.Printing guide

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