Thermodynamics review

Energy cannot be created or

Tags

NGSS.HS-PS3-2

How can a system increase it's internal energy?

• System absorbs heat

• System drinks a monster

• System loses heat

• Work preformed on the system

Tags

NGSS.HS-PS1-4

The internal energy of a system is represented by

• A drawing of a dog

• Q

• U

• H

Tags

NGSS.HS-PS1-4

The delta U refers to the

• Internal energy of a system

• Change of a systems temperature

• Change of a systems internal energy

• An airplane with a U on it

If the surroundings performs 300 J of work on the system, the delta U would

• Increase

• Decrease

• Thank the surroundings

• Stay the same

Tags

NGSS.HS-PS3-1

If work is done BY the system, w would be

• Sad

• Postive

• Zero

• Negative

Delta q is positive when heat energy is

• Lost by the system

• absorbed by the system

• Not changed within the system

• Released by the system

Tags

NGSS.HS-PS3-4

An endothermic reaction would have a negative delta q, which would mean that

• Work is preformed on the system

• Heat energy is absorbed by the system

• Work is preformed by the system

• Heat energy is lost by the system

Tags

NGSS.HS-PS1-4

In an exothermic reaction, the system

• Wears a blanket

• Absorbs heat

• Preforms work

• Releases heat

Tags

NGSS.HS-PS1-4

Endothermic reactions will have a Delta H that is

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1