Consider the Gibbs-Helmholtz equation, G = H - TS. For each dissolving process, substitute the signs of G and H into the equation and predict the sign for the entropy (S). Does the sign for entropy change seem to make sense? Explain.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.