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Question 1

How do you convert from C to K?

Answer 1

Add 273.15

Question 2

When do you use C?

Answer 2

Studying temp changes

Question 3

What do state functions depend on?

Answer 3

Initial and final, not [ath

Question 4

When energy enters the system, delta E is __________–

Answer 4

+

Question 5

How do you find delta v?

Answer 5

Final-initial

Question 6

Does the expansion of a gas require or release energy?

Answer 6

Require

Question 7

When gases expand, delta v is ____ and w is ____. Ex?

Answer 7

+, -

Blowing up balloon, hard

Question 8

When gases contract delta v is ____ and w is ____. Ex?

Answer 8

-, +
Letting air out of balloon, easy

Question 9

When heat is absorbed into the system, the readction is ________

Answer 9

Endothermic

Question 10

When heat is released, the reaction is _________-

Answer 10

Exothermic

Question 11

If the temperature of the system goes down, the reaction is ___________

Answer 11

Exothermic

Question 12

If the temperature of the system goes up, the reaction is ________-

Answer 12

Endothermic

Question 13

Breaking bonds is _________

Answer 13

Endothermic

Question 14

What is the first law of thermodynamics?

Answer 14

Law of conservation of energy

Question 15

delta e univ=

Answer 15

0=q+w

Question 16

delta e =

Answer 16

-P delta v

Question 17

If volume of system is constant, delta e v=

Answer 17

qv

Question 18

qsys=

Answer 18

-qsurr

Question 19

What is calorimetry used to study?

Answer 19

Stored potential chemical energy

Question 20

qrxn=

Answer 20

-Ccal delta T

Question 21

Delta energy rxn

Answer 21

qrxn/n