Lesson 1 the mean rate of reaction Flashcards
what is a chemical reaction
when a reactant turns into a product
the slope of the line gives us what
an idea of the rate of reaction
the steeper the slope, the what
the faster the reaction
in a QOPF against time graph, why is initially the reaction very fast
as we are making a lot of product in a short amount of time
in a QOPF against time graph , why are we making a lot of product in a short amount of time
as we have a large number of reactant molecules so lots of them are reacting and forming the product
in a QOPF against time graph, gradually what occurs
the slope of the line becomes less steep
in a QOPF against time graph, the slope of the line gradually becomes less steep meaning what
the rate of the reaction is decreasing (slowing down)
in a QOPF against time graph why is the rate of the reaction decreasing
as a lot of the reactant molecules have already reacted and turned into product
in a QOPF against time graph a lot of the reactant molecules have already reacted and turned into product means what
that there are fewer reactant molecules available to react
at the end of our QOPF against time graph what occurs
the slope of the line is now zero meaning it is flat
at the end of our QOPF against time graph the line being zero means what
the reaction has stopped
why has the reaction stopped in our graph
as all of the reactant molecules have already reacted
normally we would measure the quantity of our product formed in what
grams (g)
if our quantity of product formed was gas what would we measure it in
cm^3
in a graph of QORU over time, what occurs
initially the rate of reaction is fast, then it slows down and then it stops
