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5.1.1 how fast

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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (9)

#1
Front (Question)

rate of reaction

Back (Answer)

change in concentration of a substance in unit time mol dm-3 s-1

#2
Front (Question)

rate on graph

Back (Answer)

conc time graph gradient of tangent to curve

#3
Front (Question)

initial rate

Back (Answer)

rate at the start of the reaction where it is fastest

#4
Front (Question)

continuous rate experiments

Back (Answer)

find half lives if constant, 1st order is half lives rapidly increase then order is 2nd order

#5
Front (Question)

rate constant

Back (Answer)

k rate = k (conc) increases if we increase temperature

#6
Front (Question)

arrhenius constant

Back (Answer)

ln K = constant - Ea / RT Activation energy can be measured from gradient of lnK against 1/T graph so, Ea = - gradient x R (Gas constant) convert to kJ mol-1

#7
Front (Question)

ways to investigate rates of reaction

Back (Answer)

measure change in volume of gas measure change of mass

#8
Front (Question)

measure change in volume of gas

Back (Answer)

connect gas syringe to conical flask

#9
Front (Question)

slowest step

Back (Answer)

rate-determining step