Why we can boil water in a paper cup?
we can boil water in a paper while empty paper catches fire easily because the heat is continuously absorbed by the water which prevents the paper cup from burning…
Can we boil water in a paper cup If yes explain?
Water draws heat away from a heat source through convection until it reaches its boiling point of 100 degrees Celsius. … As the water heats up, it conducts heat away from the paper, preventing the paper from reaching that crucial temperature. Heat also continues escaping via the steam that’s created when water boils.
Why we can boil water in a paper cup on a spirit lamp?
Because heat passing to paper cup is absorbed by water and we can easily boil water in a paper cup.
Can you boil water in a paper cup in the microwave?
Paper hot cups and soup cups are designed to hold hot drinks and food, but not to withstand the extreme heat of a microwave. At best, the glue at the seam can loosen and the cup will start to leak. At worst, the cups can even catch on fire!
Why paper cup containing water does not burn which condition is not satisfied here?
If the paper cup is heated carrying water, the water will be absorbing the heat coming from the burning source and thus stops the paper from reaching its ignition point. Therefore it will not burn. … This is because of the absorption of heat by water in it.
Can you pour hot water in plastic cup?
Is it safe to put hot water in a plastic cup? No, it is not. Hot liquid causes a potentially harmful chemical to leach out of certain plastics much faster than usual, researchers have found.
What happens to the paper cup with milk used to prepare tea?
Yeah we can,as in this supplied heat is taken by the things(like water, milk) which are present in water and this will increase the ignition temperature of paper cup. So, the paper cup will not catch fire and we can prepare tea in it.
How is it possible that water can be boiled in a paper cup without burning it class 8?
Water can be boiled in a paper cup because, the heat energy supplied to paper cup rapidly passes on to water. Thus, ignition temperature of paper is not achieved and, hence, it does not catch fire.