(B) Ignition temperature of paper is higher than the boiling point of water. … Paper burns at a different temperature than boiling of water. Complete step by step solution: If a paper cup is held at a certain distance from the flame, then it can easily be used to heat some water in it.
How can water boil in a paper cup without burning it?
It is observed that it is possible to boil water without burning the paper cup. This is due to the reason that the heat given by the flame is quickly transferred from the paper cup to the water. As a result, the temperature of the paper does not reach the ignition temperature and hence is not burned.
Why does a paper cup filled with water not burn?
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 we heat 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 water be boiled in a thin paper cup?
Fill a paper cup nearly to the brim with water. Using tongs, hold the cup of water about six inches above the heating element. Continue holding the cup over the heat. The paper or burn, or the water will boil.
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.
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 worst, the cups can even catch on fire! This is true for all paper cups, not just ours. We recommend microwaving in glass or ceramic containers labeled as microwave safe.
How does water in a paper cup becomes hot without the paper cup catching fire when heated?
Answer: This is because when we heat the paper cup containing water, then the heat supplied to the paper cup is transferred to water inside it by conduction. Due to continuous transfer of heat from Paper Cup to water , the paper cup does not get heated to its ignition temperature.
Does wet paper catch fire?
Wet paper contains water which restricts it from reaching a sufficient temperature which provides enough energy to overcome the activation energy for the paper to react with oxygen. … It is only on reaction with oxygen that paper catches fire.
What happens to the empty paper cup and paper cup with water in the below activity?
Paper cup which contains water do not burn till water is vapourised. This happens because heat introduced to paper cup containing water, goes to water. Additionally water keeps the ignition temperature of the paper cup below limit. This the cause that paper cup containing water does not burn.
Can you boil water in a paper bag?
Boiling water in a paper bag sounds like an impossible task. The paper bag should burn up, leaving the water to put out the fire. … Place the bag on the ground as close to the fire as possible, and immediately pour in water, filling the bag about three quarters full. Allow the water to boil in the bag.
What happens if you put boiling water in a plastic cup?
Mar. 23 — WEDNESDAY, Jan. 30 (HealthDay News) — Exposing plastic bottles to boiling water can release a potentially harmful chemical 55 times faster than normal, new research suggests. Bisphenol A (BPA) is found in the plastics that make up water bottles, baby bottles, and other food and drink packaging.
How hot does tap water get?
The majority of injuries and deaths involving tap water scalds are to the elderly and children under the age of five. The U.S. Consumer Product Safety Commission (CPSC) urges all users to lower their water heaters to 120 degrees Fahrenheit.
How water can be boiled in a paper cup?
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.
What happens to the empty paper cup?
Answer: The empty paper cup catches fire easily and starts burning because the ignition temperature of paper reaches quickly. … When we heat the paper cup containing water, then the heat supplied to the paper cup is transferred to water inside it by conduction.