thermodynamics

Question 1

Energy can ______ but cannot be ______ or ______

Answer 1

change form
created
destroyed

Question 2

What is energy?

Answer 2

The capacity to do work

Question 3

What is work?

Answer 3

A change in energy resulting from a process

Question 4

What are the different kinds of energy (5). Explain them

Answer 4

Radiant energy (energy from electromagnetic waves ex: the sun)
Thermal energy (\ energy associated with the random motion of atoms and molecules
chemical energy (energy stored in chemical bonds)
potential energy (stored energy available because of the object's position)
kinetic energy (energy of motion, produced by a moving object)

Question 5

Almost every chemical reaction __ or ____ energy, usually in the form of ____

Answer 5

absorbs or releases

heat

Question 6

What is heat?

Answer 6

The transfer of energy between two substances at different temperatures

Question 7

What are some properties of heat? (3)

Answer 7

• flows from hot substances to cold substances
• is absorbed by cold substances
• can be released/given off during an energy change

Question 8

Is thermal energy the same thing as heat?

Answer 8

NO

Question 9

What is specific heat?

Answer 9

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree celcius

Question 10

The state of _____ (or _____) in an isolated system over the entire universe will always increase

Answer 10

entropy

measure of disorder, uncertainty, or randomness within a system

Question 11

list the states of matter in order from most entropy to least entropy

Answer 11

gases
liquids
solids

Question 12

What factors may increase the reaction rate of a chemical reaction?

Answer 12

increased temperature sand surface area