Surface Area Effect on Reaction Rate

Here is an Erlenmeyer tube. Inside is a hydrochloric acid solution. A cube made from Calcium Carbonate is inserted into it. Not long after that, a number of bubbles emerged from the surface of the cube. From the chemical reaction equation, these bubbles are none other than Carbon Dioxide gas. Thus, the presence of bubbles in the tube indicates that a chemical reaction is taking place. Chemical reaction between Calcium Carbonate and Hydrochloric Acid. Now, cubes with the same volume or mass are divided into parts. 8 parts. and 64 parts.

Each cube is put into a different Erlenmeyer tube. It turns out, the number of bubbles that appear every second is not the same. Cubes with a smaller size apparently produce more bubbles. Conversely, the largest cubes produce fewer bubbles. how to explain this.

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