Wood had heat of combustion of 14.84 kJ/kg, rough estimate of a match would weight about 0.12 g (assume dimension of 2mm x 2mm x 30 mm) and would contain only 1.78 kJ of energy when combusted with air. This same amount of energy is equivalent to 6 cc of boiling water (refer to room temperature of 25 C). Though not state the quantity of boiling water but it could say that a cup (250 cc) of boiling water had 44 time more energy than a match stick.
a ice sculpture because the fire on the match is going to run out
During burning a match the temperature is higher.
Boiling water has more heat.
please help
heat
Boiling Water OBV!
Boiling of water is caused when we provide heat energy to water which then converts into mechanical energy when the water molecules gets excited and results in escaping the surface forming vapor pressure equal to atmospheric pressure leading to boiling.
I think so.
water boiling
The burning wood needs heat and oxygen as fuel. When burning wood has heat it has energy and water can quickly deprive the wood of its energy. When water comes in contact with the burning wood it takes the heat and the water turns into water vapor, a gas. The gas rises, and therefore, the heat is quickly taken from the burning wood. This is all due to water having a low boiling point. Imagine pouring water on the burning wood. Steam and smoke is produced, which is the water taking the heat into the sky, extinguishing the fire.
please help
Boiling of water
Toasting bread, burning coal, frying an egg: chemical changes.Melting ice, boiling potatoes, buttering bread, dissolving sugar into water, boiling water: physical changes.
heat
Boiling water is endothermic as the water needs to take in energy from its surrounding in order to boil.
Melting requires energy input or absorption because liquid water has more energy than solid water.
heat produces energy which causes the corn to spin in boiling water.
Boiling Water OBV!
Boiling of water is caused when we provide heat energy to water which then converts into mechanical energy when the water molecules gets excited and results in escaping the surface forming vapor pressure equal to atmospheric pressure leading to boiling.
A lot.