State whether the following statement is True or FalseA candle burns w...
Candle Burning Process
A candle typically consists of a wick surrounded by wax, which serves as the fuel. The burning process is a chemical reaction that requires three components: fuel (wax), heat (from the flame), and an oxidizer (oxygen from the air).
Flame Formation
- When a candle is lit, the heat from the flame melts the wax near the wick.
- The liquid wax is drawn up the wick through capillary action and vaporizes due to the heat.
- This vaporized wax then ignites, producing a flame.
Importance of the Flame
- The flame itself is essential for maintaining the burning process.
- It provides the necessary heat to keep melting and vaporizing more wax, sustaining the candle’s burn.
- Without a flame, the wax cannot vaporize effectively, leading to the candle extinguishing.
Conclusion
Therefore, the statement "A candle burns without a flame" is **False**. A candle requires a flame to burn, as it is the flame that initiates and sustains the combustion process. Without it, the candle cannot fulfill its primary function of providing light or heat.
In summary, the flame is an integral part of a candle's operation, and a candle cannot burn in its absence.
State whether the following statement is True or FalseA candle burns w...
- A candle does not burn without a flame. When you light a candle, the wax melts and the liquid wax is drawn up into the wick by capillary action.
- The heat of the flame vaporizes the liquid wax and starts to break down the hydrocarbons into molecules.
- These vaporized molecules are then drawn up into the flame where they react with oxygen in the air, producing heat, light, water vapor, and carbon dioxide.
- This is why a candle produces light and heat when it burns.
To make sure you are not studying endlessly, EduRev has designed Grade 8 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Grade 8.