2/5 notes

Question 1

what are two ways energy moves in between the system and surrounding

Answer 1

heat and work

Question 2

delta H + is

Answer 2

endothermic

Question 3

delat H - is

Answer 3

exothermic

Question 4

what does energy change of a chemical system depend on

Answer 4

amount of substance involved and physical state

Question 5

what rxn is endothermic

Answer 5

surroundings get colder

Question 6

q water = -q metal is

Answer 6

first law of thermodynamics