A10 once glass of water (half full) is initially at 15c. it is left outside overnight in a location where the air temperature is -5c. by morning the glass is in equilibrium with the surroundings. find the change in entropy of the water, the surroundings and the universe for this process.

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions