Topic Details (Notes format)

Activation Energy

Subject: Chemistry

Book: General Chemistry

Activation energy (Ea) is the minimum energy required for a reaction to proceed. It represents the energy barrier between reactants and products. According to the Arrhenius equation, increasing temperature or introducing a catalyst lowers the effective energy threshold, accelerating the reaction. Visualizing Ea on an energy diagram helps understand how certain reactions can be slow at low temperatures but rapid when heated.

Practice Questions

Which element is used in thermometers?

View Question

Which element has the atomic number 26?

View Question

What is the chemical formula for calcium carbonate?

View Question

What is the chemical formula for uranium hexafluoride?

View Question

What is the chemical formula for magnesium sulfate?

View Question

Which gas is used in neon signs?

View Question

Which element is a key component of DNA and RNA?

View Question

Which element has the atomic number 92?

View Question

Which element has the atomic number 79?

View Question

What is the chemical formula for silicon dioxide?

View Question