Unit 4 Onramps Thermodynamics

Temperature is a measure of the...

• total energy in a substance
• total kinetic energy in a substance
• average potential energy in a substance
• average kinetic energy of molecules in a substance

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

Tags

NGSS.HS-PS3-4

It is possible to reach absolute zero

• true
• false

When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased diestance from each other.
• More rapidly with less distance between each other.
• More slowly with a greater distance between each other.
• More slowly with a reduced distance between each other.

Tags

NGSS.MS-PS1-4

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.

Tags

NGSS.HS-PS3-4

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.

Tags

NGSS.HS-PS3-4

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.

Tags

NGSS.HS-PS3-4

A chemical reaction that absorbs heat from the surroundings is said to be ________ and has a _________ enthalpy change at constant pressure.

• endothermic, postitive

• endothermic, negative

• exothermic, negative

• exothermic, positive

• exothermic, neutral

Tags

NGSS.HS-PS1-4

The specific heat capacity of methane gas is 2.20 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of methane from 36.0C to 75.0C?

• 22.9

• 88.6

• 429

• 0.0113

• 1221

Tags

NGSS.HS-PS3-4

• 40.5

• +109

• -15.5

• -109

• -59.0

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1