2006-09-03 10:05:20 · 9 answers · asked by lookitzhealthy 2 in Science & Mathematics ➔ Biology
1. because the pan is heated up first and the heat is transferred to the water...
2. the pan (being made of metal) can obtain much higher temperature than water (max temp of water is only 100C).
3. Water also have a high specific heat capacity, meaning that it takes more energy to change the temperature. Metal have a lower specific heat capacity since little energy input can change the temp alot more.
2006-09-03 10:12:38 · answer #1 · answered by Anonymous · 2⤊ 1⤋
Becozz, the fire will straightly heat up the pan, n not the water. From the pan, the heat will slowly transfer to the water. So, the heat will 1st go to the pan, then only it will transfer to the water. Besides, pan is made of a material, which can easily trap heat.. Hehe, ok?
2006-09-05 08:04:26 · answer #2 · answered by Bear 2 · 0⤊ 0⤋
There may be several anwers to this, but most likely it is because the pan is directly over the heat, while the heat must be transmitted through the pan to get to the water (there will be temperature drop through the pan).
In addition, the masses of the pan and the water and their specific heats will also determine how fast each one heats up. If the mass times specific heat of water is greater than the mass times specific heat of the pan, the water will take longer to heat up.
2006-09-03 10:10:36 · answer #3 · answered by gp4rts 7 · 2⤊ 1⤋
It's a thing called specific heat. That measures the amount of energy needed to raise a kilogram of something 1 degree Celcius. The specific heat of water is very high. It takes a lot less energy to change the temperature of the pan.
2006-09-03 10:34:41 · answer #4 · answered by Alan J 3 · 1⤊ 0⤋
The heat flow is always in the direction from higher temperature to a lower temperature. initially the stove is at a higher temperature than that of the pan. So there is a heat flow from the stove to the pan and the pan gets heated up. the mode of heat flow from stove to pan is conduction.
And when the pan gets heated up, it is then when there is a heat flow from pan to that of water. but now the mode of heat flow is convection.
conduction is a better mode of transfer than that of convection.
2006-09-03 10:13:45 · answer #5 · answered by Maddy 1 · 0⤊ 0⤋
Heat is transfer ed from material to adjacent material, The pan is sitting on t he source of heat - it is the first to heat. That heat is then passed on to the water - and from the water, to the surrounding air.
2006-09-03 10:10:59 · answer #6 · answered by LeAnne 7 · 0⤊ 1⤋
because the pan is closer to the heat source
2006-09-03 10:10:30 · answer #7 · answered by waplambadoobatawhopbamboo 5 · 0⤊ 1⤋
because the pan (metal) is a good conductor of heat and electricity!
2006-09-03 10:11:18 · answer #8 · answered by Anonymous · 2⤊ 0⤋
because the capacity of water of storing heath is greater then the capacity of metal.
2006-09-03 10:10:23 · answer #9 · answered by gjmb1960 7 · 1⤊ 1⤋