c6: the rate and extent of chemical change Flashcards
(11 cards)
how can one find rate of reaction btw marble chips and hydrochloric acid
1) change in mass from reactants to products / time
2) collecting gas in gas syringe, find volume off gas / time
what does exothermic mean
energy is released to surroundings
what does endothermic mean
energy is taken in from surroundings
how does a catalyst increase the rate of reaction
- (high sa to volume ratio)
- provides a different pathway/ reaction route
in the haber process, where is hydrogen obtained from
natural gas
in the haber process, where is nitrogen obtained from
air
what is used as a catalyst in haber process
iron
what colour is anhydrous copper sulphate
white/colourless
what colour is hydrated copper sulphate
blue
what happens to the unreacted nitrogen and hydrogen from the haber process
recycled/ reused