Question

2 What is capillary action? Design a demonstration to illustrate capillary action. 3. Why won't a candle burn without a wick? The candle burns with a yellow flame, but the flame in gas stove is blue? What makes the different flame colors? 4.

Answer 1

2) what are capillary action Design a demonstsalon to illustrate capillary action. I can be defined as the ascension of Tiquide throngh slim lube or pumuable substance due to adhesive and cohesive forus mteracting between the liquid and the surface. Demonstration: use two pieces of paper to wate a space between two microscope slides. A doop of colondwater is placed at the edge of the slides. the interaction of the liquid with the solid surfaces mowes the liquid Huongh the manow space between the slides. Then change the size of the opening by seplacing the paper with pennes. The height to which the lignid sise will fall. Because the effect of cohesion and adhesion get reduced 3) Why won't a candke bun without a wiek? - The war, in its solid form, does not buin. when you bring the flame oka match near the wick the was directly below starts to melt due to the heat or in some cases, the actual wick material will start to brin and then heat up the war below. The melted wax is then drawn up the to the

| flame on the wick through capil any action. As the liquid wan is daawn up into the fame, it is heated until it vaposizes. Once it is in gaseous form, it is ignited by the fame. The combustion of gaseous was keeps the flame going The candle buins with a yellow Hary, but the flame in gas stove is blue? What makes the different flame dows, A bhre gas flame indicates complete comb ustion has stone possesses blue flame because the setup of gas stove allows for an to min with gas before burning when the oxygen supply is sufficient then the fuel bun completely producing a blue flame. candle possesses yellow flame due to insull- icient onggen supply in yellow flames are produced due to incomplete combustion.