Thermochemistry

Question 1

What is the first law of thermodynamics?

Answer 1

The amount of energy int he universe is constant

Question 2

Define thermodynamics

Answer 2

Study of energy and its conversions

Question 3

Define internal energy (E)

Answer 3

Sum of potential and kinetic energies

Question 4

Define system

Answer 4

Portion of the universe, singled out for investigation

Question 5

Define surroundings

Answer 5

Everything that exists outside of system of investigation

Question 6

Define state function

Answer 6

Its value is dependent on the state of the system, and not how it arrived in that state (think of altitude vs distance)

Question 7

Heat vs temp?

Answer 7

Heat is caused by a temperature difference

Question 8

Define heat capacity

Answer 8

Amount of heat rquired to change temperature in a system by 1 celcius

Question 9

Define extensive property

Answer 9

Depend on amount of matter in question

Question 10

Define intensive property

Answer 10

Do not depend on amount of matter (color, density)

Question 11

Define specific heat capacity

Answer 11

The amount of heat required to raise the temperature of 1 gram of something by 1 C

Question 12

Define molar heat capacity

Answer 12

The amount of heat required to raise the temperature of 1 mole of something by 1 C

Question 13

Define calirimeter?

Answer 13

Measures the heat involved in a chemical reactiomn

Question 14

What is container of calirimetr where reaction happens called?

Answer 14

bomb