Four Stroke Engines
What are the four strokes?
intake, compression, power, exhaust
What is the formula for the combined gas law?
PV/T = PV/T
Which side are the reactants on compared to the arrow?
left
Temperature is a measure of the average _________ energy.
a. potential
b. kinetic
c. electrical
d. mechanical
Gases are fluids. TRUE or FALSE
FALSE
What direction does the piston move during the exhaust stroke?
up
What is the relationship between pressure and volume?
indirectly proportional (as one goes up one goes down)
What are the reactants in a combustion reaction?
fuel and oxygen
potential energy is the energy stored within _______
bonds
Gases are not able to be compressed. TRUE or FALSE
TRUE
During which stroke is potential energy highest?
intake
What are standard temperature and pressure conditions?
273 K and 1 atm
What are the products of a combustion reaction?
carbon dioxide, water, energy
Define the law of conservation of energy.
Energy can be neither created nor destroyed, it remains constant.
How is pressure created?
bouncing off of walls of container
During which stroke does potential energy transform to kinetic?
power
If the volume of a balloon is originally 0.50 L at 293 K and the temperature rises to 353 K, what is the new volume? Assume pressure remains constant. (round to the hundredths place)
0.60 L
What is the specific name for a reaction that absorbs energy?
endothermic
Challenge!!!!!! Double Jeopardy (2x) What is a unit for energy?
J or kJ
How do gases move?
random, constant, straight-line motion