I think you mean "prizes".
The answer is "not really". There might be a tournament for a month's membership or a T-shirt etc. However, nothing to interest you, the investment of time required means that tournaments here are for fun only.
Though, you might make some money if you get a "Deathmatch" invitation:
http://www.chess.com/article/view/death-match-rules
Hi chess.com comunity i have a little question. Here in chess.com are tournaments with prices?