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The Methane Bomb ! How to you mix oxygen and methane to make an EXPLOSION?

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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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Presentation Transcript
slide1
The Methane Bomb !

How to you mix

oxygen and methane

to make an

EXPLOSION?

slide2
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?

slide4
Methane and

Oxygen 1:2

Methane

Methane and

Air 50-50

slide6
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

slide7
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.

slide8
Methane and air…notice the change in color and speed of burn.

Double click movie to start.

Click here for next page

slide9
Incomplete combustion inside the bag needing

oxygen from the air to complete burning….

faster than the lst example.

slide10
CH 4 + 2 O 2 == 2 H 2 O + CO 2

1volume methane to 2 volumes oxygen

Double click on movie to start.

slide11
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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