A25-liter sample of steam at 100°c and 1.0 atm is cooled to 25°c and expanded until the pressure is 20 mmhg. if no water condenses, calculate the final volume of the water vapor.

What reaction is taking place? 02 + c3h8 = h20 + co2

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?