7 & 17. Equilibrium (1)
For each question choose the answer you consider to be the best.1. Which statements about an isolated system at equilibrium are always correct?I. Energy cannot enter or leave the systemII. None of the products can escapeIII. The concentrations of the reactants and products are equalA. I and II onlyB. I and III onlyC. II and III onlyD. I, II and III2. Which is the correct expression for the equilibrium constant for...