When it comes to entropy, there is one really important equation - the equation for change in entropy: the change in entropy for a system, delta S, is equal to the heat transferred to or from that system, Q, measured in Joules, divided by the average temperature of that system, T, me...
E.P.E. is the work done or electric potential energy measured in joules (J). Q is the amount of source charge measured in coulombs (C). V is the electric potential measured by volts (V). So the electric potential energy unit is volt which is equal to joule per coulomb, or V is...
If you do your measurements on the CGS (centimeters, grams, seconds) system, force is expressed in dynes and work in ergs. You must convert these to newtons and joules to get the result in watts. Here are the conversion factors: 1 dyne = 10−5newtons 1 erg = 10−7joules You can...
For example, an object with a mass of 5 kilograms has a kinetic energy of 250 joules. To solve for the velocity using the kinetic energy equation, we can do the following:Given:K.E. = 250 Jm = 5 kgUsing the rearranged equation: v = sqrt(2 * K.E. / m)...
In physics, the more common form of the equation is: k = Ae-Ea/(KBT) k, A, and T are the same as before Eais the activation energy of the chemical reaction in Joules kBis theBoltzmann constant In both forms of the equation, the units of A are the same as those of the rate cons...
One of the equations you may encounter is the one for heat capacity: Q=mCΔT where Q is thermal energy in joules, m is the mass of the object being heated, C is the object's specific heat capacity and delta T is its change in te...
at which the energy is transferred is known as the power. The most commonly used unit of energy is represented by Newton-meter or Watt-seconds while the most commonly used unit of power is Watt represented by Joules/second. Energy is a time component while power is an instantaneous quantity...
is a thermodynamic potential that is used to measure the maximum amount ofwork donein any given thermodynamic system when the temperature and pressure of the system are kept constant. Gibbs free energy is denoted by the letter G. Its value is usually expressed in either Joules or Kilojoules as...
The most prevalent energy unit is Joules (J) or kilojoules (kJ). The following are some of the latent heat units: Joules per gram (J/g) or kilojoules per kilogram (kJ/kg). Calories per gram (cal/g) or kilocalories per kilogram (kcal/kg). British thermal unit per pound (BTU/lbs)...
The units for m can be any mass unit, gram, kilogram, lbs, and so on. The units of {eq}L_f {/eq} is an energy unit per mass unit. The units must be in agreement with both q and m's units. If the unit of q was Joules (J) and the unit of m was grams (g), then the...