polystyrene
white
paper
the iron becomes hottest because it is a conductor of heat
A metal cup will generally keep hot water hotter for longer compared to a paper cup. Metal is a better insulator than paper, so it helps to retain heat more effectively.
The comparative of hot is hotter.The superlative of hot is hottest.
The water is hottest at the top of a hot water storage cylinder because of the principle of convection. As water is heated, it becomes less dense and rises, while cooler, denser water sinks to the bottom. This creates a stratification effect, where the hottest water accumulates at the top, while cooler water remains at the bottom, allowing for efficient heating and storage.
no !
Cold water is supplied to the bottom of the hot water tank to prevent mixing of cold and hot water. This ensures that the hottest water is at the top of the tank where it can be drawn for use, while the cold water enters at the bottom to be heated by the heating element or burner. This also helps in creating a convection current within the tank for efficient heating.
It is a pump that keeps the domestic hot water circulating back to the hot water tank so that you have hot water quickly when you turn a faucet on.
It is not fixed..it keeps changing from year to year.According to the recent data the hottest part of the earth is 'Lut Desert' which is in Iran.
Hottest.
They are inclined so that hot flue gases come in contact with hottest water.