Suppose a hydrogen–oxygen fuel-cell generator produces electricity for a house. Use the balanced redox reactions and the standard cell potential to predict the volume of hydrogen gas (at STP) required each month to generate the electricity. Assume the home uses 1.2 x 103 kWh of electricity per month.
CH 1010 General Chemistry Dr. Ava Kreider Mueller Chapter 4 Key Terms: Ionic Bond results from the complete transfer of 1 or more electrons from 1 atom to another, the formation of 2 charged particles (cations and anions) Ionic Solid cations & anions pack together in a regular way Electrostatic Potential Energy (E )elnergy a charged particle has because of its position relative to another charged particle Lattice Energy ( U) – energy released when 1 mole of an ionic compound forms from its free ions in the gas phase. As Radius of a Cation ↓ the lattice energy ↑ As the Radius of an Anion ↓ the lattice energy ↑ As the Charge of the Cation ↑ the lattice energy ↑ Polyatomic ion charged, covalently bonded groups of atoms Covalent Bond two atoms share 2 electrons Molecule a unit of matter that results when 2 or more atoms are joined by covalent bonds Bond length the optimum distance between nuclei, where net attractive forces are maximized and the molecule is stable (lowest energy formation) Nonpolar covalent bond : a bond characterized by an even distribution of charge; electrons in the bonds shared equally by the two atoms Polar covalent bond : bond resulting from an unequal distribution of bonding pairs of electrons between atoms, results in a partial charge on
