CHEM 121 2026 THERMOCHEMISTRY AND
GAS LAWS LEARNING OUTLINE
◉heat. Answer: the amount of energy that can be transferred from
one object to another due to a temperature difference
◉temperature. Answer: measure of the average kinetic energy of
particles
◉exothermic. Answer: system releases heat
◉endothermic. Answer: system absorbs heat
◉titrations. Answer: used to find the molarity of solutions, find the
moles of solute by reaction with a known amount
◉enthalpy. Answer: the heat of reaction at constant pressure, delta
H
◉energy. Answer: = q + w (heat + work)
, ◉specific heat. Answer: (c), the amount of energy needed to raise
the temperature of one gram of a substance one degree C
◉heat. Answer: q= m x c x deltaT
◉calorie. Answer: amount of heat needed to raise the temperature
of one gram of water by one degree celcius
◉calorimeters. Answer: this is used to find energy in chemical
reactions, coffee cup/bomb
◉hess's law of heat summation. Answer: If the equation for a
reaction can be written as 2 or more thermochemical equations,
then the enthalpy change for the reaction equals the sum of the
enthalpies of those equations
◉standard enthalpy of formation. Answer: = SUM deltaHf of
products - SUM deltaHf of reactants
◉bomb calorimeter. Answer: q = Ccal x deltaT
◉heat capacity. Answer: C = m x c
(m= mass
GAS LAWS LEARNING OUTLINE
◉heat. Answer: the amount of energy that can be transferred from
one object to another due to a temperature difference
◉temperature. Answer: measure of the average kinetic energy of
particles
◉exothermic. Answer: system releases heat
◉endothermic. Answer: system absorbs heat
◉titrations. Answer: used to find the molarity of solutions, find the
moles of solute by reaction with a known amount
◉enthalpy. Answer: the heat of reaction at constant pressure, delta
H
◉energy. Answer: = q + w (heat + work)
, ◉specific heat. Answer: (c), the amount of energy needed to raise
the temperature of one gram of a substance one degree C
◉heat. Answer: q= m x c x deltaT
◉calorie. Answer: amount of heat needed to raise the temperature
of one gram of water by one degree celcius
◉calorimeters. Answer: this is used to find energy in chemical
reactions, coffee cup/bomb
◉hess's law of heat summation. Answer: If the equation for a
reaction can be written as 2 or more thermochemical equations,
then the enthalpy change for the reaction equals the sum of the
enthalpies of those equations
◉standard enthalpy of formation. Answer: = SUM deltaHf of
products - SUM deltaHf of reactants
◉bomb calorimeter. Answer: q = Ccal x deltaT
◉heat capacity. Answer: C = m x c
(m= mass
