Assume that the change in pressure of h2s is small enough to be neglected in the following problem. (a) calculate the equilibrium pressures of all species in an equilibrium mixture that results from the decomposition of h2s with an initial pressure of 0.824 atm. 2h2 s(g) ⇌ 2h2(g) s2(g) kp

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth