Combustion of candle wax, heat loss within a system, and physical/chemical changes that occur are a result of energy Transformers.
Usually carbon dioxide, water vapor, and a little soot.
some are oxygen and carbon dioxide
Kinetic Energy, i.e. heat
wax
materials burn because of a chemical reaction that occured within the material. as for the purpose there can be many... you can burn wood for warmth or a candle because it smells good
The amount of energy needed to start a chemical reaction. Source: Biology class
Yes, candle burning is a spontaneous process. A spontaneous process is defined as: once it is allowed to start, the process will proceed to the finish without any external intervention. You lit the candle, it was allowed to burn and it would keep going without any help. The Gibbs free energy change for this process is negative. On the other hand, the decomposition of CaCO3(s) is NOT a spontaneous process. You have to keep heating the reaction vessel in order to decompose all CaCO3. Outside intervention is needed for this process to finish.
every thing come from the sun the plants get there energy from the sun so that's where the source
The sun is the source of all energy except geothermal.
matchsticks
Energy is never "used" it is always converted to another form of energy.Therefore, there must be different forms of energy which are:1. Chemical2. Electrical3. Elastic4. Nuclear5. Thermal6. Gravitational7. Kinetic8. Light(9. Sound)When a candle burns the chemical energy is converted into thermal or "heat" energy.
Start first candle from one side burning and second candle from two side burning. So second candle will take 30 min to finish. When second candle finished make first candle also to burn from both side. So now remaining of first candle will take more 15 min to finished. So total life of burning of fist candle is 45 mins.
While the body is in a fasting mood, the body will move to a ketosis state and start burning fats as a source of energy to the body.
there should b presence of oxygen....
you run into a state called Ketosis. That is your body senses that you don't provide instant energy source and you provide only protein and fats. So it will start using protein to build and safeguard the muscle and will start burning fat as main fuel source.
partial combustion takes place here and wax vapour start burning with a yellowwish flame . this region of candle flame is moderately hot. so it is called as the luminous zone
Strike the match and start it burning then it can be used
all nonrenewable fuels can be traced back to the sun as a primary energy source
When a candle smell like comes from any where of your vehicle it migth be a wire getting too hot, the revestiment of wires are made of plastic which when start burning but not enough to flame it the smell will be like a candle.
Not spontaneously. But, it could easily burn if it is near a heat source, like a candle or a heater.
materials burn because of a chemical reaction that occured within the material. as for the purpose there can be many... you can burn wood for warmth or a candle because it smells good