Reaction Rates Flashcards
1
Q
How does increasing pressure increase rate of reaction
A
more molecules per unit area hence more colisions per unit time and more frequent collisions
2
Q
How does the use of catalyst reduce energy demand and benefit the enviornement
A
Reduces CO2 Emissions and lowers thermal energy and reduces use of toxic solvents
3
Q
Why does rate of reaction decrease over time
A
Concentration of reactants decreases hence few collisions per unit time
4
Q
How does catalyst increase rate of reaction
A
Lowers activation energy by Provides an alternate reaction pathway for particles to react hence greater proportion of molecules have more enrgy than activation energy
5
Q
How to measure rate of reactiobn
A
Measure mass of Zn
Measure vol of HCl
Mix Zn and HCl
Measure gas volume at timed intervals
