genchem prefinals examination Flashcards
energy associated with an object by virtue of its motion
kinetic energy
the quantity of heat needed to raise the temperature of 1g pure water to 1 degree celsius
calorie
the sum of the kinetic and potential energies of the particles making up a substance
internal energy
the heat content a substance has at a given temperature and pressure
enthalpy
it is represented by “q”, is the energy that transfers from one object to another because of a temperature difference between them
heat
it states that in any chemical or physical process, energy is neither created nor destroyed
law of conservation of energy
the measurement of the heat into or out of a system for chemical and physical processes
calorimetry
the science of the relationship between heat and other forms of energy
thermodynamics
the system loses heat (gets cooler) as the surroundings heat up
exothermic system
the capacity for doing work or supplying heat
energy
energy an object has by virtue of its position in a field of force
potential energy
the amount of heat needed to increase the temperature of an object exactly 1 degree celsius
heat capacity
system gains heat (gets warmer) as the surroundings cool down
endothermic system
concerned with heat changes that occur during chemical reactions
thermochemistry
the amount of heat it takes to raise the temperature of 1 gram of the substance by 1 degree celsius
specific heat capacity
