PHYSICS & TEMPERATURE BLVCK IV

________ is a dominant factor in determining the physical properties or state of matter.

What can change the state of matter?

Boiling Point = 212 degrees

Freezing Point = 32 degrees

Boiling Point = 373 degrees

Freezing Point = 273 degrees

All molecular activity ceases at absolute zero.
Fundamental Constant

-Directly Proportional 
-Increase in pressure will cause an increase in temperature

-Directly Proportional
-Pressure increases will raise boiling point
-Pressure can chance the state, but not dominate factor

-Caused by movement of molecules

Joules, Calories, & BTU’s

-Water is the standard 
-Water has a value of one
-Heat required to change one pound of a substance one degree

____ is required to change the temperature of one pound of water by one Fahrenheit.

-Governs heat transfer 
-States, heat travels from hot to cold
- HEAT SEEKS COLD

Conduction, through _____ objects, requires a medium

Convection, through _____ objects, requires a medium

Radiation, through _____ , doesn’t require a medium

Controlling Heat Transfer: May be desired through -

• Radiation turned away by reflective material such as paint
-Conduction reduced by a poor conductor such as stainless steel
-Convection eliminated by a vacuum such as between two tanks