joule

Examples of joule in the following topics:

• Nuclear Binding Energy and Mass Defect

  • Once this energy, which is a quantity of joules for one nucleus, is known, it can be scaled into per-nucleon and per-mole quantities.
  • To convert to joules/mole, simply multiply by Avogadro's number.
  • To convert to joules per nucleon, simply divide by the number of nucleons.
  • $2.7843\times10^{-10}\frac{Joules}{atom}\ \times \frac {6.02\times10^{23}\ atoms}{mole}\times \frac{1\ kJ}{1000\ joules} =$ 1.6762 x 1011$\frac{kJ}{mole}$

• Heat and Work

  • The units of heat are therefore the units of energy, or joules (J).
  • Like heat, the unit measurement for work is joules (J).

• Free Energy and Cell Potential

  • One volt is $1\frac {Joule}{Coulomb}$.
  • $\Delta G^o = -2 \ moles\ e^- \times 96485\frac {Coulombs}{mole} \times 0.12 \frac {Joules}{Coulomb}$

• Measuring Radiation Exposure

  • Dose is reported in gray (Gy) for matter or sieverts (Sv) for biological tissue, where 1 Gy or 1 Sv is equal to 1 joule per kilogram.

• Bond Energy

  • The SI unit of energy is the joule, symbol J.

• Equilibrium Constant and Cell Potential

  • In this problem, 2 moles of electrons are being transferred, F is 96485 $\frac {Coulombs}{mole}$, R is 8.31$\frac {Joules}{K \times mole}$, T is 298 K, and Eo is 1.10$\frac {Joules}{Coulomb}$.

• Electrolysis Stoichiometry

  • power (in watts) is the rate of energy production or consumption: 1 w = 1 $\frac {Joule}{second}$.

• Microstates and Entropy

  • Thermodynamic entropy has the dimension of energy divided by temperature, which has a unit of joules per kelvin (J/K) in the International System of Units.

• Strategy for General Problem Solving

  • Some of the common ones include mass (ton, pounds, ounces, grains, grams); length (yard, feet, inches, meters); and energy (Joule, erg, kcal, eV).

• Converting from One Unit to Another