Question

Please answer the following question correctly and show all works

rhe san der Waals eguation makes two corrections to the ideal gas law, and aats te and &) that are give the magnitude of the corrections. Explain the san der Wasis constants for the noble gases shown in the following table. trends in Noble gas a(L"atm mol 002370 0.0322 4190.0510 0.0341 0.211 1.34 3400171 23200398 Ar Xe

Answer 1

Down the group in the periodic table, the size of the atom increases, it means He will be the smallest among the given noble gases and Xe will the largest.
Van der Waals constant "a" indicate the force of attraction between the atoms or molecules, in this case as down the group size increases, so the surface area of each atom increases, thus contact between two molecules will increase thereby force of attraction will increase down the group. Hence, we can say that "a" will increase down the group as shown in the table.

Van der waals constant "b" indicates the size of the atom or molecules, larger the size of the atom, larger will be "b", as down the group from He to Xe size increases, hence "b" will increase down the group shown in the table.