equlibrium

Question 1

what is a dynamic equibrium

Answer 1

a state that occurs in reversible reactions when certain conditions are met. it occurs in closed systems where no substance can enter or leave. when the rate of forward reaction equals the rate of the reverse reactions. both reactions happen at the same time and same speed so theres no net change

Question 2

what is le chateliers principle

Answer 2

if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract this change

Question 3

what is thermodymanics

Answer 3

the energy changes during chemical reactions and predictions as to whether a reaction is spontaneous based on energy considerations

Question 4

what is enthalpy change

Answer 4

Heat energy absorbed or released at constant pressure.

Question 5

what is Entropy Change

Answer 5

Measure of disorder or randomness in the system.

Question 6

what does Gibbs Free Energy determine

Answer 6

spontaneity

Question 7

what is thermodymanic stability

Answer 7

Products lower in Gibbs free energy than reactants are more stable and favored at equilibrium.

Question 8

what does kenetics focus on

Answer 8

how fast a reaction happens and why

Question 9

which factors affect rate of reaction in kinetic reactions

Answer 9

• temp
• catalysts
• concentrations and surface area

Question 10

what do energy profiles show

Answer 10

relative energy of reactants/products and activation energy.

Question 11

what happens when temp changes in a dynamic equilibrium

Answer 11

adding heat to the system mean the system tries to absorb this heat by favoring the endothermic reaction

Question 12

what happens when temp decreases in a dynamic equilibrium

Answer 12

heat is removed, system tries to produce more heat by favoring the exothermic reaction

Question 13

whats the law of conservation of mass

Answer 13

No atoms are created or destroyed during a chemical reaction​. The total mass of the products is equal to the total mass of the reactants.