Systems and surroundings, irreversible and reversible reaction

Question 1

define: system vs surroundings

Answer 1

chemical reactions/everything else

Question 2

energy transferral between system and surroundings depends on what

Answer 2

whether system is endo/exothermic

Question 3

define: open system

Answer 3

system which can exchange matter and energy with surroundings. Eg. boiling pot of water without a lid

Question 4

define: closed system

Answer 4

system which can exchange only energy, and not matter with the surroundings. Eg. boiling pot of water with a lid.

Question 5

define: irreversible reaction

Answer 5

when significant reaction can occur in one direction only. Products can’t be converted back to reactants
• Eg. combustion reaction

Question 6

define: reversible reaction

Answer 6

reaction in which significant reaction can occur in the reverse direction, as products can react with each other under suitable conditions.

Question 7

what arrow represents reversible reaction

Answer 7

equilibrium arrow

Question 8

if an exothermic reaction is reversed…

Answer 8

itll be endothermic