Thermodynamics and Heat Transfer

Zeroth law of thermodynamics is:

• Kinetic energy of molecules of a gas is zero

• Ideal gas does not contain molecules

• If two systems are thermal equilibrium third one is also in equilibrium

• Absolute zero temperature cannot be obtained

An adiabatic process occurs at constant

• Temperature

• Pressure

• Heat

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NGSS.HS-PS3-4

The SI unit for measuring heat is the 

• pascal
• newton
• Joule
• calorie

Thermodynamics is the study of what?

• The transfer of energy
• The creation of energy
• The speed of reactions 
• The affect of heat on the speed of a reaction 

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NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What quantity of heat is required to raise the temperature of 450 grams of water from 15°C to 85°C? The specific heat capacity of water is 4.18 J/g/°C.

• 131670 J
• 159885 J
• -131670
• none of the above

Tags

NGSS.HS-PS3-4

My coffee and the creamer have the same temp. My cofee and the cup have the same temp. So...Creamer and cup have same temp.

• Zeroth Law of Thermodynamics

• First Law of Thermodynamics

• Second Law of Thermodynamics

• Third Law of Thermodynamics

Ratio to work out to work in

• Efficiency
• Law of Conservation of Energy
• Transformation
• Lumens

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NGSS.HS-PS3-3

What is the equation for the first law of thermodynamics for energy input into a system?

U=Internal Energy

Q=Heat input

W=Work input

• U=Q+W

• U=Q-W

• U=-Q+W

• U+Q+W=0

What is constant in an isothermal process?

• Temperature

• Pressure

• Heat

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder
• Colder to hotter
• Hotter to hotter
• Colder to colder

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NGSS.HS-PS3-4