The rate of a chemical reaction was observed to rise with increasing temperature up to
temperature, tx. at temperatures higher than tx, however, the reverse was observed.
this may be explained by,
a. a reaction mechanism comprising of a complex set of elementary
reactions
b. a reaction kinetics limited by factors other than the rates of elementary
chemical reactions
c. a reaction running under equilibrium control
d. experimental error in the determination of the rates of reaction
e. none of the above

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.