I Feel Your Energy
What is work?
What is the first law of thermodynamics?
These 3 symbols indicate heat is leaving the system.
What is q < 0 ?
Under constant pressure and the expansion or compression of gases, it is equal to
-P\DeltaV
What is work?
It is equal to the heat gained or lost by the system at constant pressure.
What is the change in enthalpy,
\Delta H
The energy due to motion.
What is kinetic energy? (What is kinetic?)
It's the part of the universe comprised of the reactants and products of the chemical reaction being studied.
What is the system?
It's the term used when q < 0 or when heat moves from the system to the surroundings.
What is exothermic?
It is the number of joules equal to 1 liter*atmosphere.
What is 101.3 ?
It is the amount of heat released when one mole of gaseous water condenses to a liquid.
2 H2O (l)\rightarrow 2 H2O (g), \Delta H=+88 kJ
What is 44 kilojoules?
The energy stored in chemical bonds.
What is potential energy? (What is electrostatic potential energy?)
It is Efinal - Einitial .
What is delta-E?
Delta E
It's the term used when q > 0 or when heat moves from the surroundings to the system.
What is endothermic?
It is internal energy plus the product of the pressure and the volume of the system.
E + PV
What is enthalpy, H?
It is the the amount of heat required to raise one mole of a substance by 1 Kelvin.
What is the molar heat capacity?
1 (kg*m^2)/s^2
What is a joule?
It is equal to q + w, heat flow + work flow.
What is delta-E ?
Delta E
These 3 symbols indicate work is being done by the surroundings on the system.
What is w > 0?
It's often written as
\Delta Hrxn
What is the heat of reaction? (or enthalpy of reaction)
If the specific heat capacity of water is 4.18 J/g*K, then this is the amount of heat needed to raise the temperature of 10. g of water by 10.oC.
What is 418 joules?
It's what happens to energy when chemical bonds are formed.
What is released?
It states that if a reaction is carried out in a series of steps, Delta-H for the overall reaction equals the sum of the enthalpy changes for the individual steps.
What is Hess's law?
These symbols mean there is a net loss of energy by the system.
What is
Delta E<0 ?
It is the enthalpy for the formation of one mole of a compound from its constituent elements at 1 atm and 298 K.
What is the standard enthalpy of formation?
It's the amount of heat released when 2 moles of chlorine gas is formed by 4 moles of gaseous chlorine atoms, considering D(Cl-Cl)= 242 kJ/mol
What is 484 kJ?