LT7.1 Heat Flow (Honors)

Ice cream melting is an example of an ________ process.

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

Sweating is an ________ process because heat is released.

• endothermic

• exothermic

When heat flows from system to the surroundings that is an example of an ________ process.

• exothermic

• endothermic

Tags

NGSS.HS-PS3-4

Kinetic energy is energy gained ________.

• while at rest

• during motion

Heat flows from ________.

• warm to cool

• cool to warm

Tags

NGSS.HS-PS3-4

What area of study in chemistry is concerned with the heat transfers that occur during chemical reactions?

• stoichiometry

• thermochemistry

• inorganic chemistry

• physical chemistry

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

The law of conservation of energy states that

• in any chemical or physical change, energy cannot be created or destroyed, only changed in form.

• heat changes occur during chemical and physical changes.

• energy is the capacity to do work or to supply heat.

• there are two types of energy, kinetic and potential.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

________ is a measure of the average kinetic energy among the particles of a substance.

• Heat

• Specific heat

• Temperature

• Thermal energy

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

Heat is a form of ________.  

• movement

• energy

• melting

• dissolving

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

Substance A was added to substance B and the reaction beaker got cold. Is the reaction between A and B exothermic or endothermic.

• Exothermic, because heat is given off by the reaction.

• Endothermic, because heat is given off by the reaction.

• Exothermic, because heat is being absorbed by the reaction.

• Endothermic, because heat is being absorbed by the reaction.

Tags

NGSS.HS-PS1-4