Question
How does the short circuit form? What is its effect?
In this case, a large amount of heat is produced and the temperature of the components involved becomes very high. Hence, the circuit catches fire.
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$2 Mg + O _2 \rightarrow 2 MgO$
| Name | Molecular formula | Condensed structural formula | Number of carbon atom | Number of $-CH_2-$ units | Boiling point $^\circ C$ |
| Methane | $CH_4$ | $CH_4$ | $1$ | $1$ | $-162$ |
| Ethane | $C_2H_6$ | $CH_3–CH_3$ | $2$ | $2$ | $-88.5$ |
| Propane | $C_3H_8$ | $CH_3–CH_2–CH_3$ | $3$ | $3$ | $-42$ |
| Butane | $C_4H_{10}$ | $CH_3–CH_2–CH_2–CH_3$ | ______ | ______ | $0$ |
| Pentane | $C_5H_{12}$ | $CH_3–CH_2–CH_2–CH_2–CH_3$ | ______ | ______ | $36$ |
| Hexane | $C_6H_{14}$ | $CH_3–CH_2–CH_2–CH_2–CH_2–CH_3$ | ______ | ______ | $69$ |