Heat and Energy Study Guide UPDATED
Exam Questions and CORRECT Answers
What is energy? - CORRECT ANSWER - The ability to do work or cause change
(generate heat)
What is energy measured in? - CORRECT ANSWER - Joules
What is HEAT? - CORRECT ANSWER - The result of the transfer of kinetic energy
between different particles
Heat flows from regions of _____ energy to ______ energy - CORRECT ANSWER -
High, Low
Is temperature the measure of heat? - CORRECT ANSWER - NO! It is the measure of
avg. kinetic energy of particles in a system.
What is the equation of heat and work? - CORRECT ANSWER - (Delta)E = q+w
What does q mean in heat/work equation? - CORRECT ANSWER - Heat
What does w mean in heat/work equation? - CORRECT ANSWER - Work done
If a system releases heat, what will q be? - CORRECT ANSWER - (-)
If a system DID work, what will w be? - CORRECT ANSWER - (-)
A system is... - CORRECT ANSWER - The objects or subjects of interest in energy
movement.
, Everything outside of the system is.... - CORRECT ANSWER - The Surroundings
Everything including the system and its surroundings is... - CORRECT ANSWER - The
Universe
All energy gained by a system must be ___ by the surroundings, and vice-versa. - CORRECT
ANSWER - LOST
The change in energy of the universe is... - CORRECT ANSWER - Always Constant
first law of thermodynamics... - CORRECT ANSWER - Is the conservation of energy
(energy cannot be created nor destroyed, only converted to other forms of energy)
second law of thermodynamics... - CORRECT ANSWER - Energy can be transformed into
other forms...ENTROPY = measure of randomness.
Systems like to become ___ disordered over time - CORRECT ANSWER - MORE
Entropy (_) is______. - CORRECT ANSWER - (S) - the measure of disorder of
randomness
Entropy is always... - CORRECT ANSWER - increasing
The Third Law of Thermodynamics... - CORRECT ANSWER - Absolute Zero (0 k) - NO
ENTROPY. No kinetic energy and particles do not vibrate. Perfect crystalline structure.
Ice has ____ entropy, while something like a gas gas ____ entropy. - CORRECT
ANSWER - Low, high.
Exam Questions and CORRECT Answers
What is energy? - CORRECT ANSWER - The ability to do work or cause change
(generate heat)
What is energy measured in? - CORRECT ANSWER - Joules
What is HEAT? - CORRECT ANSWER - The result of the transfer of kinetic energy
between different particles
Heat flows from regions of _____ energy to ______ energy - CORRECT ANSWER -
High, Low
Is temperature the measure of heat? - CORRECT ANSWER - NO! It is the measure of
avg. kinetic energy of particles in a system.
What is the equation of heat and work? - CORRECT ANSWER - (Delta)E = q+w
What does q mean in heat/work equation? - CORRECT ANSWER - Heat
What does w mean in heat/work equation? - CORRECT ANSWER - Work done
If a system releases heat, what will q be? - CORRECT ANSWER - (-)
If a system DID work, what will w be? - CORRECT ANSWER - (-)
A system is... - CORRECT ANSWER - The objects or subjects of interest in energy
movement.
, Everything outside of the system is.... - CORRECT ANSWER - The Surroundings
Everything including the system and its surroundings is... - CORRECT ANSWER - The
Universe
All energy gained by a system must be ___ by the surroundings, and vice-versa. - CORRECT
ANSWER - LOST
The change in energy of the universe is... - CORRECT ANSWER - Always Constant
first law of thermodynamics... - CORRECT ANSWER - Is the conservation of energy
(energy cannot be created nor destroyed, only converted to other forms of energy)
second law of thermodynamics... - CORRECT ANSWER - Energy can be transformed into
other forms...ENTROPY = measure of randomness.
Systems like to become ___ disordered over time - CORRECT ANSWER - MORE
Entropy (_) is______. - CORRECT ANSWER - (S) - the measure of disorder of
randomness
Entropy is always... - CORRECT ANSWER - increasing
The Third Law of Thermodynamics... - CORRECT ANSWER - Absolute Zero (0 k) - NO
ENTROPY. No kinetic energy and particles do not vibrate. Perfect crystalline structure.
Ice has ____ entropy, while something like a gas gas ____ entropy. - CORRECT
ANSWER - Low, high.
