I
For the following process, classify whether the system is an isolated, open, or closed system.

I need some guide. Here are my answers. Are they right? And why?

1. An automobile tire contains air at 170 kPag. The tire is inflated to 240kPag. -open

2. A kettle containing water, water vapor, and air is placed on a flame. As a result, stream at atmospheric pressure issues from the sprout. - open

3. Oxygen is confined in a cylinder with rigid non-conducting walls and head but fitted with a non-conducting gas tight piston. The piston moves compressing the charge of oxygen. - close

Question

I
For the following process, classify whether the system is an isolated, open, or closed system.

I need some guide. Here are my answers. Are they right? And why?

1. An automobile tire contains air at 170 kPag. The tire is inflated to 240kPag. -open

2. A kettle containing water, water vapor, and air is placed on a flame. As a result, stream at atmospheric pressure issues from the sprout. - open

3. Oxygen is confined in a cylinder with rigid non-conducting walls and head but fitted with a non-conducting gas tight piston. The piston moves compressing the charge of oxygen. - close

anonymous · Answer

The first one is open and the third one is isolated.

anonymous · Answer

1)first one is open becoz u see volume of gas is not constant its changing with its surrounding..
2)again same reason for open volume is not constant
3)close becoz volume is contant