Consider an insulated tank with a volume v = 2 l is separated into two equal-volume parts by a thin wall. on the left is an ideal gas at p = 100kpa and t = 500k; on the right is a vacuum. now the wall is removed. a) what is the final temperature in the tank? b) what is the ∆suniv due to the removal of the wall?

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.