A friend tells you, Free energy G and pressure P are related by the equation G G RT ln(P). Also, G is related to the equilibrium constant K in that when Gproducts Greactants, the system is at equilibrium. Therefore, it must be true that a system is at equilibrium when all the pressures are equal. Do you agree with this friend? Explain.

2.7 Density Density is basically the relative heaviness of an object The formula is D = m/v A deviation that might have to be used is M = D x V Density is a physical property of matter. The density of water @ 4 ° Celsius is 1.00 g/ml Use density to calculate mass from volume Example 1: Mercury has a density of 13.6 g/ml. What size bottle will contain 13.6 g/ml 13.6 x 1ml = 8.35 ml 13.6 g 3 Example 2: Gold has a density of 19.3 g/ cm . What’s the mass of a gold cube with 1.27 cm sides (a ½ inch cube). ** This problem will use the deviation I listed in the bullets above** cm V = (1.27 ¿¿3 = 2.05 3 cm