1.6

Question 1

reaction feasibility for reversible reactions

Answer 1

equilibrium will lie to the left

Question 2

reaction feasibility for non-reversible reactions

Answer 2

equilibrium will lie to the right

Question 3

standard enthalpy of formation

Answer 3

25 degrees c or 298 K (room temp), 1 atm pressure. energy change when 1 mole of a substance is formed from its elements in their standard states and at above conditions

Question 4

S

Answer 4

entropy. the disorder in a substance. solid is lower. goes up after fusion to liquid, then vaporisation to a gas

Question 5

3rd law of thermodynamics

Answer 5

the entropy of a crystal at 0K is zero. this provides a reference against which entropies can be measured

Question 6

randomness of a mixture and if dissolved

Answer 6

more randomness, more S

Question 7

2nd law of thermodynamics

Answer 7

a chemical reaction will be feasible if there is an overall increase in entropy of the system and its surroundings

Question 8

Gibb’s

Answer 8

amount of energy available to do with stuff. G– means reactions is feasible. delta H is opposite of this