Chapter 13A Quiz Flashcards
What is the branch of science that studies the transfers of energy during chemical reactions or phase changes
Thermochemistry
What is the average kinetic energy in particles of a sample. Typically measured in Celcius or Kelvins
Temperature
What is the measure of the total amount of thermal energy transferred from one substance to another
Heat
What is the standard SI unit of work and can be used to measure any kind of energy
Joule (J)
What is is the thermal energy content of a system at a constant pressure
Enthalpy
What is heat produces a phase change
Latent
What is heat that produces a temperature change in the substance when applied
Sensible
What of a substance is the amount of thermal energy required to raise the temperature of 1g of the substance by 1°C
Specific Heat (C^sp)
What is enthalpy change for the reaction that produces 1 mol of a compound in its standard state from its elements in their standard states
Standard molar enthalpy of formation (ΔH°^f)
Combustion reactions produce energy in the form of what two things?
Heat and light
What is the energy released as heat by the complete burning of one mol of a substance at standard conditions
Standard molar enthalpy of combustion (ΔH°^c)
What Law is the enthalpy change of a reaction equals the sum of the enthalpy changes for each step of the process
Hess’s Law
What is the quantity of energy required to melt one mole of a 0 solid to a liquid with no temperature change called heat of fusion OR
Molar enthalpy of fusion
What is the amount of energy required to convert a mole of a liquid at its boiling point to its vapor at the same temperature is called the heat of vaporization OR
Molar enthalpy of vaporization
What is the difference between the enthalpy of the products and the enthalpy of the reactants
Enthalpy of reaction
