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Why did you fell heat from the flame even if you did not touch it?
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Why does smoke become a flame?
because the heat get's warmer until it becomes a flame
Why can you hold your fingers beside the candle flame without being harmful but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why do you pass back and forth in the flame while heating the liquid?
That is to allow even heat distribution. If the object being heated in a flame is held in one position, a "hot spot" will occur and the liquid may start to boil at that spot.
Is a burning candle exothermic reaction?
Yes, a burning candle is an example of an exothermic reaction. When the candle wax reacts with the oxygen in the air, it produces heat and light energy as byproducts. This release of heat is what makes the candle flame feel warm to the touch.
Why should you not heat glassware with a Bunsen?
Because the yellow flame produces less heat energy than the blue flame, and if you use the yellow flame, more chemical energy in the gas will be transferred into light energy than heat energy, which would be a waste of energy.(Cause your goal is the heat up the beaker.)
What is the difference between flame and heat?
"Flame" is the visible energy when burning something. "Heat" is given off a flame and countless other things. Flame produces heat, but heat does not always generate from flame, and heat almost never produces flame (friction might count). And if you want the definitions: HEAT: a form of energy that is transferred by a difference in temperature. FLAME: the process of combustion of materials producing heat and light and (often) smoke. If you want to think of it a different way: Flame is what you see when you look at a fire and heat if what you feel from the fire.
How you can calculate the heat irradiative by the flame?
You can calculate the heat of a flame by its color. Normally the hotter that the flame is the bluer that the flame will burn. If the flame is red that means it is burning at a cooler temerature.
Radiation is the type of heat roasts the marshmallows?
When roasting a marshmallow the transfer of heat from the flame to the marshmallow is radiation.Radiation is the transfer of heat through energy waves. It can actually be considered conduction as well if you place the marshmallow into the flame, since that is the direct transfer of heat.
Why doesnt waterfilled balloon burst when heated?
You can have the candle flame actually touch the balloon, and the balloon won't break! The water in the balloon is absorbing the heat from the candle. The balloon conducts heat very well, so the candle flame transfers to the water without harming the balloon.
Which flame has more heat a steady blue flame or a yellow flame?
Blue flame. because it does not have carbon
Why can't we keep our hand above a candle flame?
Heat is transmitted through conduction (touch), convection (flowing) and radiation (rays). When you hold your hand beside a flame the radiated heat will reach you (it radiates out in all directions like the light), but not much of the convected heat, because convected heat flow is upwards (most things expand as they heat up, so they get lighter and rise), and you will not get heat from conduction unless a burning spark flies out and touches you and conducts the heat directly. With your hand above the flame you are receiving heat from radiation and convection. With your hand in the flame you would get heat from radiation and convection and conduction. The hottest part of a flame is the position where most intense combustion is occurring. If you look at a flame there is usually a small more transparent area near the base of the flame. The boundary between this and the bright area above at the centre of the flame is the hottest area. (This is why when using a gas welder you focus this part of the flame on the metal area to be welded.)
What is the possessive of flame?
The possessive form for the noun flame is flame's.Example: I feel the flame's heat.
Can you heat a safety flame?
No
How do you make poker cards smooth?
use a big wax candle and rub it against ur cards. then with a small flame, (do not let the flame touch the card) use its heat to melt the wax slightly, and u get a smooth card. (rather)
How do you make a toy car crash scene?
You use a match or lighter to heat up the plastic. Do not touch the plastic with the flame though. Hold it about a centimeter below the plastic.
Why the direction of flame is in upward?
A flame's direction is upwards because heat rises.
What does a flame need to burn?
For a flame to burn it needs fuel, oxygen, and heat.
