No. The energy you might be referring to is kinetic energy which is the energy possessed by individual water molecules. An increase in kinetic energy will be percieved as and increase in temperature. Similarly a decrease in kinetic energy will be percieved as a decrease in temperature.
No, it can't have the same thermal energy. The hot water loses energy to the surroundings. Cold is an absence of energy, as energy is removed the water becomes cold.
has water always exhibited the same property throughout history
Total energy of an isolated object is always same.
No, it always changes
The total amount of energy remains the same.
temperature is a way to measure heat, so they are not exactly the same Note, a cup of water at the same temperature as a gallon of water ... has less energy.
No
No, 4 cups of boiling water would have more thermal energy than 2 cups of boiling water. The amount of thermal energy is directly related to the quantity of water and its temperature. More water requires more energy to heat it to boiling temperature, resulting in higher thermal energy.
Yes it does save on energy but is about the same amount of water.
always the refractive index of water is same.....
the simple answer no
The quantity of a substance and its temperature determine the amount of energy it has. Unless both glasses of water have the same number of atoms exactly, there will be some variance in their thermal energy levels.