Thermodynamcis

What is Thermodynamics?

• science of the relationship between heat, work, temperature, and energy.

• The science of how heat travles through space and other vacums

• The science of how energy travles through space and other vacums

• The science of how enrgy is trnsmitted through space and other vacums

Which state of H₂O  has the greatest entropy?

• Ice
• Water
• Vapor

The picture shows two completely identical mason jars. They're both filled with the same gas, only one of them has more in it (more molecules). What can you say about the pressures of both jars?

• P₁ > P₂ (greater pressure in jar 1)

• P₁< P₂ (greater pressure in jar 2)

• P₁ = P₂ (same pressure in both)

• There's not enough info to tell

Thermal energy always moves:

• From a high temperature object to a lower temperature object.
• From a lower temperature object to a higher temperature object.
• From an object with lower kinetic energy to an object with higher kinetic energy.
• From an object of higher mass to an object of lower mass.

A slower particle has a lower energy than an identical, faster particle.

• True
• False

What kind of graph is this?

• endothermic
• exothermic

The temperature of a glass of cold water will eventually...

• Match the temperature of the surrounding environment.
• Always be colder than the surrounding environment.
• Become warmer than the surrounding environment.
• Never change temperature.

A substance with a high specific heat:

• Is always extremely hot.
• Requires a lot of energy to become hot.
• Is not heavy.
• Does not requires a lot of energy to become hot.

Rank the following samples from greatest kinetic energy of the molecules to least kinetic energy of the molecules:

• A > B > C > D
• B > A > C > D
• B > A > D > C
• D > C > B > A

The diagram represents which type of reaction

• endothermic
• exothermic