Hw 5 (ch 1.3-1.4 // 4.1-4.5 // 8.5) Flashcards
Matter defined as…
Anything that has mass and occupies space
An amorphous solid…
Does not have any regular, internal geometric pattern
Homogeneous matter is…
Uniform in appearance and has the same properties throughout
Heterogeneous matter is…
Matter consisting of two or more physically distinct phases
Another name for a homogeneous mixture?
Solution
Potential energy is…
Stored energy or energy that an object possesses due to its relative position
Kinetic energy is…
Energy that matter possesses due to its motion
Law of conservation of energy states that…
Energy can be neither created nor destroyed, though it can he transformed from one form to another
Endothermic reactions…
Require heat to proceed
Exothermic reactions…
Produce heat as a product
Joules to calories
1 cal = 4.184 Joules
Specific heat of a substance is…
The amount of heat required to change temp of 1 g of substance by 1 degree Celsius
Formula for heat =
Heat = (mass of substance) (specific heat of substance) (change in temp)
