If you place a piece of zinc metal is placed in a beaker of hydrochloric acid which of the following will occur?
a) vigorous reaction, accompanied by the evolution of hydrogen
Ob) vigorous reaction, accompanied by the evolution of chlorine
c) reaction of the metal without the evolution of gas
d) no visible reaction

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: