Which weighs more: a liter of water at 20 degrees C or a liter of water at 80 degrees C. Explain.
1 answer
Look up the density of water at 20 C and the density at 80 C and use mass = volume x density to calculate the mass of 1000 mL at those two temperatures. You can type "table density H2O versus temperature" into Google and find a table. If you have trouble locating it I can help you find it.