Gas torch || home made gas torch ll only 5 rupees
Channel: Dipanjan Pramanik
Date: 2020-07-21

WELCOME TO SCIENCE PATHSHALA:
we are making a small device
Subjects:
 gas torch 
Description: Calcium carbide is added to water The acetylene gas produced in the reaction is ignited producing a loud explosion.
Materials:
CaC2 and H2O and bottle , infusion set
‡Calcium carbide is located in the general chemical storage cabinet.
Procedure:

Note: Practice this demo ahead of time to get a feel for the amount of CaC2 needed.
1. 20 t0 30 ml water in the bottle 
2.Push a piece of calcium carbide into the battle
3.Observe expansion of acetylene gas.
4.Place the flame next to the serenge

Discussion:
In the reaction between calcium carbide and water, acetylene gas is produced:

CaC2(s) + 2H2O(l) → Ca(OH)2(s) + C2H2(g)

The rapid oxidation of acetylene by oxygen produces its combustion products of carbon dioxide and water.

2C2H2(g) + 5O2(g) → 4 CO2(g) + 2H2O(g) + heat

Show the acetylene lamp and describe its use.

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thank you for watching 
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