Thermochemistry
What is thermochemistry the study of?
The study of heat transfer in reactions and phase changes
Which type of releases heat into the surroundings?
exothermic
According to KMT, are gas particles moving or stationary
Which gas variable measures force per area?
Pressure
which gas law describes the relationship between pressure and volume?
Boyles law
What does △H represent?
The change in heat
Which type of reaction absorbs heat from the surroundings?
endothermic
What kind of collisions occur between gas particles?
straight line in random motion
which gas variable measures the space occupied by a gas?
Volume
Which gas describes the relationship between volume and temperature?
Charles Law
What is the system in Thermochemistry?
the specific, targeted part of the universe you are observing or studying
In an exothermic reaction, is △H positive or negative
negative
What type of motion do gas particles travel in?
elastic collisions
which gas variable is related to average kinetic energy?
Temperature
In boyle's law, if pressure increases, what happens to volume?
Volume decreases
What are the surroundings in thermochemistry?
everything outside the system
Give one example of an endothermic process?
Evaporation, Sublimation, Photosynthesis, etc
According to KMT, the average kinetic energy of particles depends only on what?
temperature
which gas variable represents the number of particles present?
Moles
In Charles law, if temperature increases, what happens to volume?
volume increases
What graph shows temperature changes and phase changes as heat is added?
Give one example of an exothermic process
Combustion, Condensation
According to KMT, gas particles have negligible what?
volume
Name all four gas variables (variables not laws)
Pressure, Volume, Temperature, and Amount (Moles)
What gas law combines pressure, volume, and temperature into one equation?
Combined gas law