Rate of Reaction and Collision Theory (VCE SSCE Chemistry): Flashcards
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Rate of reaction
Rate of reaction
Change in concentration per unit time
Unit for reaction rate
Unit for reaction rate
mol L⁻¹ s⁻¹ or M s⁻¹
Two methods to measure reaction rate
Two methods to measure reaction rate
Gas volume or mass loss over time
Calculate rate from graph using
Calculate rate from graph using
Gradient of tangent to curve
Three collision theory requirements
Three collision theory requirements
Collide; sufficient energy; correct orientation
Activation energy ()
Activation energy ()
Minimum energy for successful collision
Transition state
Transition state
Unstable max energy state; bonds break and form
Exothermic reaction
Exothermic reaction
Negative; products lower energy than reactants
Lower effect on rate
Lower effect on rate
Faster reaction
Orientation in collisions matters because
Orientation in collisions matters because
Correct bonds must break/form