Mentos And Soda Geyser

Chemistry Level 2

A mint-flavored mentos makes a geyser 5 meters high and a fruit-flavored mentos makes a geyser 2 meters high when the two candies are put into identical bottles of soda under identical experimental conditions. What is the most reasonable hypothesis to explain the difference?

Mint candies are more basic, increasing the acid-base reaction Mint candies are more acidic, increasing the acid-base reaction Fruit candies have a more rough coating, decreasing nucleation sites Fruit candies have a smoother coating, decreasing nucleation sites

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Jordan Calmes by Jordan Calmes , 33, USA

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2 solutions

Jordan Calmes
Mar 31, 2016

Relevant wiki: Why Do Mentos Explode in Coke?

The rougher the surface of the candy is, the more nucleation sites it has. Nucleation sites are the areas that allow the carbon dioxide bubbles to form. More carbon dioxide bubbles translates to a bigger explosion, propelling the soda further into the air.

20 Helpful 3 Interesting 4 Brilliant 1 Confused

is the nucleation sites depend on the surface area of the mint candies with increasing in area ?

A Former Brilliant Member - 4 years, 9 months ago

so generally that means the rougher the surface , the higher the geyser.

remy xiao - 1 year, 3 months ago
Rigveda Gupta
Jul 16, 2020

The rougher the surface of the candy is, the more nucleation sites it has. Nucleation sites are the areas that allow the carbon dioxide bubbles to form. More carbon dioxide bubbles translates to a bigger explosion, propelling the soda further into air.

1 Helpful 1 Interesting 1 Brilliant 0 Confused

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