Actually it's not weight we are dealing with here, it is actually density. So what happens is when temperature increases, the density decreases and volume increases or vice versa if the temperature decreases, the density increases and the volume decreases.
please help
nonow if you had said does a pound of feathers weigh more than a pound of water.....
yes!
yes
Water expands more than ethanol because the boiling point og water is more than that of ethanol.
a bath full of cold water
neither. the water needs to be boiling to create gas. Hot water will not create gas and cold water will not create gas. Yes, hot water will create gas more quickly than cold if boiled tho
boiling
Hot water boils faster than cold water because it is closer in temperature to the boiling point. The boiling point of water is 100oC. If we had hot water at 90oC and cold water at 20oC, then the hot one would reach the boiling point of 100oC faster, since it only has 10oC more to go adn less heat needs to be added.ummm... hot water and hot water boil at the same rate...
Hot water boils faster than cold water because it is closer in temperature to the boiling point. The boiling point of water is 100oC. If we had hot water at 90oC and cold water at 20oC, then the hot one would reach the boiling point of 100oC faster, since it only has 10oC more to go adn less heat needs to be added.ummm... hot water and hot water boil at the same rate...
you measure the water before boiling. after boiling would be more tricky.
Per volume, cold water has more mass than hot water; cold water is therefore more dense. This is because, the molecular energy, and thus the molecular activity, of hot water is greater than that of cold water. Higher molecular activity equates to a larger separation of molecules which results in an increase in volume.
boiling it
A cup of boiling water since it has higher temperature. Note that heat transfer depends more on the temperature.
please help
Parboiling is cooking food in boiling water until it is partly cooked, to parboil noodles, drop them into boiling water, when partly cooked remove them and refresh in ice cold water to stop them cooking any more. Finish them off later, either in more boiling water, or add them to a stir fry or a bowl of soup. As they are already partly cooked they will be ready in no time.
yes..because of the heat transfer is more in vigorous boiling point.