Thermokinetics Review

What does temperature measure in particles?

• kinetic and potential energy

• potential energy

• heat

• average kinetic energy

What must be known in order to calculate heat energy released when using a calorimeter?

• temperature change

• mass and temperature change

• mass, temperature change and specific heat

• specific heat

Tags

NGSS.HS-PS3-1

How many joules of energy are needed to warm 5.00 g of silver from 25.0°C to 27.5°C? (The specific heat of silver is 0.24 J/g°C.)

• 0.14 J

• 1.2 J

• 3.0 J

• 12.5 J

Tags

NGSS.HS-PS3-1

What type of chemical reaction create heat?

• endothermic

• exothermic

• nuclear

• Salt

Tags

NGSS.HS-PS1-4

If you would like to help speed up a reaction, what would you need to do to it?

• decrease surface area

• decrease temperature

• add a catalyst

• cool it

Tags

NGSS.HS-PS1-5

In order to start a chemical reaction, there is a minimum amount of energy needed. This is called the ______________.

• potential energy

• activation energy

• initiation energy

• useful energy

What type of reaction is illustrated in the graph (image).

• exothermic

• phase change

• endothermic

• heating curve

Tags

NGSS.HS-PS1-4

What does the arrow in image represent.   

• catalyst

• Activation Energy

• Products

Tags

NGSS.HS-PS1-4

What phase change(s) are present at point A?

• melting and freezing

• melting and vaporization

• solid

• condensation and vaporization

Tags

NGSS.MS-PS1-4

What phase change(s) are present at point B?

• solid

• melting and fusion

• condensation and vaporization

• freezing and condensation

Tags

NGSS.MS-PS1-4