Thermochemistry Part 1

Heat flows from _______ to ______ objects

• cooler to warmer
• warmer to warmer
• warmer to cooler
• cooler to cooler

Tags

NGSS.HS-PS3-4

Energy can not be created or destroyed, it can only be transferred refers to the....

• law of conservation of energy
• law of conservation of mass
• life facts
• law of conservation of chemistry

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A(n) _____________ is a device for measuring temperature.

• thermometer
• barometer
• anemometer
• psychrometer 

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

• True
• False

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

• temperature
• heat
• internal energy
• none of these

Tags

NGSS.HS-PS3-4

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.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.MS-PS3-4

NGSS.MS-PS1-4

The first law of thermodynamics states that energy is

• created
• destroyed
• conserved
• created and destroyed

Tags

NGSS.MS-PS3-4

H₂ + 2 C + N₂ + 270.3 kJ --> 2 HCN
Is this reaction endothermic or exothermic?

• Endothermic 
• Exothermic