Respuesta :

cergia
The definition of capacity is how much something can hold. (ex: how much do water do you think this cup could hold?)

The definition of amount is how much there is of something. (ex: there are 20 slices of pizza.) 
Goalinetsky
Capacity: The maximum amount that something can contain.
Amount: A quantity of something, typically the total of a thing or things in number, size, value, or extent.

I disagree.