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The Methane Bomb ! How to you mix oxygen and methane to make an EXPLOSION?. Balance the following equation: ___CH 4 + ______ O 2 === ____ CO 2 + ____H 2 O. Avagadro’s Law: Equal volume of two gases at the s ame temperature and pressure contain EQUAL n umbers of molecules.

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The Methane Bomb !

How to you mix

oxygen and methane

to make an

EXPLOSION?


Balance the following equation:

___CH4 + ______O2 === ____ CO2 + ____H2O

Avagadro’s Law: Equal volume of two gases at the

same temperature and pressure contain EQUAL

numbers of molecules.

How should the volume of Oxygen gas compare with

the volume of Methane so neither gas is left over?


Methane and

Oxygen 1:2

Methane

Methane and

Air 50-50



Lighting the bag of pure methane at the top of the bag.

Double click on movie to start.

(movies must be inserted into your ppt

Click for next page


Methane is lighter than air…it only burns at the edges of the ball of rising methane taking

a longer time to burn and burns yellow indicating

incomplete combustion.


Methane and air…notice the change in color and speed of burn.

Double click movie to start.

Click here for next page


Incomplete combustion inside the bag needing burn.

oxygen from the air to complete burning….

faster than the lst example.


CH burn.4 + 2 O 2 == 2 H 2 O + CO 2

1volume methane to 2 volumes oxygen

Double click on movie to start.


Twice the volume contains twice the number of molecules of oxygen as methane so complete combustion can occur within the bag and is much faster!

The explosion is quite loud…students should be at least

10 feet away….also there is possibility of hot plastic

if too close. Don’t expect to do it just once! The expense of having a large bottle and

regulator of oxygen is well worth its use during the

year.


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