On-Ramps Chemistry - Thermodynamic-1

Which of the following best describes an open system?

• A sealed water bottle

• A coffee cup without a lid

• A thermos bottle

• An unopened soda can

The first law of thermodynamics states that:

• Energy is always created and destroyed.

• The entropy of the universe decreases over time.

• Energy is conserved in any process.

• Work cannot be converted into heat.

Tags

NGSS.HS-PS3-2

A perfume bottle is opened, and the scent spreads throughout the room. This is an example of:

• The first law of thermodynamics

• The second law of thermodynamics

• Conservation of mass

• A closed system in equilibrium

Which of the following is not a state function?

• Entropy (S)

• Internal energy (E)

• Heat (q)

• Enthalpy (H)

Tags

NGSS.HS-PS3-4

If a balloon explodes, what kind of system is it considered?

• Open system

• Closed system

• Isolated system

• No way to tell

Which state functions are associated with the first law of thermodynamics?

• Entropy (S) and Gibbs free energy (G)

• Internal energy (E) and enthalpy (H)

• Work (w) and heat (q)

• Pressure (P) and volume (V)

Which of the following is a path function?

• Enthalpy (H)

• Entropy (S)

• Work (w)

• Internal energy (E)

In a closed system, which of the following can be exchanged with the surroundings?

• Only matter

• Only energy

• Both matter and energy

• Neither matter nor energy

Tags

NGSS.HS-ESS2-6

If a system does positive work on the surroundings, what happens to its internal energy (E)?

• It increases

• It decreases

• It stays the same

• It depends on the entropy change

What is enthalpy (H)?

• The disorder of a system

• The total heat content of a system

• The energy required to start a reaction

• The energy available to do work

Tags

NGSS.HS-PS3-1