Thermochemistry

You can't define me

100

Another name for thermal energy

What is heat

200

A piece of equipment designed to measure heat of reactions at constant volume

What is a (bomb) calorimeter

300

The translational, vibrational, and rotational motion of the molecule

What is the average kinetic energy

400

The change in enthalpy when one mole of the compound forms from its constituent elements in their standard states

What is standard enthalpy of formation

500

If a chemical equation can be expressed as the sum of series of steps, then [delta]H (rxn) for the overall equation is the sum of the heats of the reactions for each step

What is Hess' Law

Go with the flow

100

Relationship between q hot and q cold (Describe the heat flow)

What is q hot = -q cold

200

The average kinetic energy of the chemical species in a system

What is temperature

300

Equation for heat (q) of a calorimeter

What is q = mass * c * delta T

400

When is [delta]H equal to [delta]E?

What is when the reaction occurs at constant volume

OR

What is when a reaction does not involve any gases

500

When is [delta]E different from [delta]H?

What is when a gas is involved (when pressure-volume work is done)

Just. Pure. Energy

100

Standard unit of energy

What is Joules

200

Equation relating system and surroundings

What is [delta]E (system) = -[delta]E surroundings

300

The sum of the kinetic and potential energies of all of the parties that compose the system [delta] E

What is internal energy

400

Energy associated with a reaction at constant pressure

What is enthalpy, [delta]H

500

Energy associated with a reaction at constant volume

What is the internal energy, delta U (delta E)

Laws, what are they good for?

100

First Law of Thermodynamics

What is the law that states that energy can not be created nor destroyed

OR

 What is the law that states that the total energy of the universe is constant    

                        

200

Changes in the entropy of the universe can never be negative.

What is the second law of thermodynamics

300

The third law of thermodynamics 

What is the entropy of a pure, perfect crystalline substance at 0 K is zero.

400

All spontaneous processes produce an increase in the entropy of the universe.

What is the second law of thermodynamics

500

If two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other.

What is the zeroth law of thermodynamics

Chaos Ensues

100

A measure of the disorder of energy and matter

What is entropy

200

The portion of enthalpy change free to do useful work

What is the free energy

300

We can use this parameter to determine the spontaneity of a reaction.

What is the free energy of the reaction

400

The maximum amount of thermal energy derivable from a thermodynamic process under constant pressure

                                                       

    

What is enthalpy

500

A measure of how energy is distributed to, from, or within a system as a function of temperature

What is entropy