Yes it is possible. Boiling takes place when the saturated vapour pressure becomes equal to the surrounding pressure. So by reducing pressure over the surface of liquid even at 20 deg celsius it is possible to boil.
No, it is not possible to boil water in negative temperatures because boiling occurs at 100 degrees Celsius or 212 degrees Fahrenheit, which is above freezing temperatures.
This is only how i explained it to myself after i did the experiment, so it might not be right. Burning is the result of a combustion reaction, and combustion reactions require a certain amount of activation energy to start. When the paper is in contact with water, the energy from the open flame that would usually start the combustion reaction is transferred to the water before the paper can ignite. This raises the temperature of the water and it will eventually reach boiling point. Now when all the water has evaporated, then the cup burns because there is nowhere left for the heat to be transferred to.
No, passing steam at atmospheric pressure will not cause water to boil. Boiling occurs when the liquid reaches its boiling point temperature and vapor pressure overcomes the atmospheric pressure. Generally, steam at atmospheric pressure will only cause the water to heat up and potentially evaporate faster.
Electricity can be generated from burning oil by using the heat produced to boil water and create steam. The steam then drives a turbine connected to a generator, which produces electricity. This process is known as thermal power generation.
You can't only a spaz would think that was possible
To boil milk without burning it, heat it slowly over low to medium heat and stir it frequently to prevent it from sticking to the bottom of the pot. Watch it closely and remove it from the heat as soon as it starts to boil.
Yes it is possible. Boiling takes place when the saturated vapour pressure becomes equal to the surrounding pressure. So by reducing pressure over the surface of liquid even at 20 deg celsius it is possible to boil.
No, it is not possible to boil water in negative temperatures because boiling occurs at 100 degrees Celsius or 212 degrees Fahrenheit, which is above freezing temperatures.
Yes but the flame would have to be hot enough to boil water which is 100ºC(212ºF).
There is lower air pressure.
To effectively double boil water, fill a pot with water and place a heatproof bowl on top. Make sure the water doesn't touch the bottom of the bowl. Heat the water gently, allowing the steam to heat the bowl and ingredients inside. This gentle method is ideal for cooking delicate ingredients or melting chocolate without burning.
Water evaporates at 100 so it would not be possible to boil an egg at 200
Yes, when coal is burned to boil water, the chemical energy stored in coal is converted into thermal energy (heat) during combustion. The heat is then used to boil water, which produces steam to drive a turbine and generate electricity.
Keep the water at a low, gentle boil (medium-high heat) and only cook the perogi until they float to the surface of the water. At time, the perogi are cooked and need to be promptly removed from the water.
Use a double boiler when heating the chocolate. Use your biggest pot and fill it with water and bring it a boil. Put a stainless steel mixing bowl on the top and melt it in the bowl. The steam will heat the food while greatly reducing the chance of it burning.
With sugar. Increased density increases its absorbsion pf heat.