Question

What system is indicated by the reaction of cooking rice in a presssure cooker?
(A) Open system
(B) Closed system
(C) Isolated system
(D) All the systems

Answer 1

B) closed system
my opinion

Answer 2

The option B is the right answer to this question.

It is because a closed system is indicated by the reaction of cooking rice in a pressure cooker.  

When it comes to the pressure cooker, it is commonly pot with the tight-fitting lid as well as few safety valves.

If we lock the lid onto our cooker, we are selling a pot shut and producing the closed pressure system.