The graph below compares the motion of particles in two substances. one substance is a gas and the other is a solid.
particle motion
particle speed
substance
which statement best describes the two substances?
particles are closer together in solids so substance b is a solid.
particles are farther apart in solids so substance a is a solid
particles are farther apart in gases so substance b is a gas.
particles are closer together in gases so substance a is a gas

Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.