Derive an equation for the entropy change of a system of perfect gas when it expands isothermally
from a volume vito a volume vi.
calculate the change in entropy when 4.00 g of nitrogen is allowed to expand from 500 cm to
750 cm at 300 k.
calculate the entropy change in the surroundings when 1.00 mol n2o(g) is formed from 2.00 mol

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?