Thermodynamics Vocab

What does the law of conservation of energy state?

• Energy can be created and destroyed.

• Energy can only be transformed, not created or destroyed.

• Energy is always lost in a system.

• Energy is only present in open systems.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What is the study of heat changes in chemical reactions called?

• Thermodynamics

• Thermochemistry

• Calorimetry

• Entropy

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which type of system has no exchange of matter or energy?

• Open system

• Closed system

• Isolated system

• Adiabatic system

What is the process called when there is no heat exchange with surroundings?

• Isothermal

• Adiabatic

• Isobaric

• Exothermic

What is the measure of disorder or randomness in a system?

• Enthalpy

• Entropy

• Calorimetry

• Gibbs Free Energy

What is the criterion for spontaneity in chemical reactions that combines entropy and enthalpy?

• Calorimetry

• Gibbs Free Energy

• Specific Heat

• Second Law of Thermodynamics

What does the Second Law of Thermodynamics state about entropy?

• Entropy decreases over time in an isolated system.

• Entropy remains constant in an isolated system.

• Entropy of the entire universe will always increase over time.

• Entropy is irrelevant in thermodynamics.