Why is can drink like coke is still fizzy when we open?

Question

i thought the CO2 gas will escaped by the time we open...

Answer 1

Because the air in the can is trapped and has greater pressure on it. When you open the can the air leaves the can because there is less pressure outside of the can than inside the can. This is explained in Bernoulli's Principle (areas of high pressure move to areas of low pressure) This moving of the CO2 causes the fizz

Answer 2

Soda's either in an aluminum can or a plastic bottle. They make many foods and most drinks air tight foor storage. If the container is air tight, then I don't think the carbination, Which is a gas, can escape.

Now, maybe your talking about when you first open it. A good bit does come out when you open it because the bottle or can has pressure in it. When you shake it, more pressure biulds up. That's why it "explodes" if you shake then open it. It takes a while for all the carbonation to come out. I think it's because it's mixed up in the form of bubbles in the liquid. When it's "flat" then all the carbonation is gone.

Answer 3

Not all of the CO2 leaves. Since the CO2 was so pressured in the can, it is released once it is opened. But not all left, leaving the fizz. Once you leave it out for long, you see the flat state it will be in, and then thats when the CO2 has left completely

Answer 4

The liquid in the can is pressurized so the CO2 actually isn't a gas in the can or bottle, it's held in solution in your pop until you open it and the pressure equalizes.

Answer 5

No, where's it gonna go?! Nowhere! the CO2 is locked inside the drink can!

Answer 6

Because like anything else, when the moon is full, and the creeks don't rise, you'll always have your back to fall back on!