system and surroundings  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

Lindsay H 2B
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

system and surroundings

Postby Lindsay H 2B » Wed Jan 17, 2018 4:33 pm

question 8.19 has to do with heating up a copper kettle in order to heat up the water inside. In this situation, is the kettle considered part of the system or the surroundings?

Michelle Nguyen 2L
Posts: 50
Joined: Fri Sep 29, 2017 7:03 am

Re: system and surroundings  [ENDORSED]

Postby Michelle Nguyen 2L » Wed Jan 17, 2018 5:04 pm

Since we are being asked to calculate the amount of heat that must be added to the kettle (containing water), I would consider it as part of the system, the whole system being kettle+water

William Satyadi 2A
Posts: 31
Joined: Sat Jul 22, 2017 3:00 am

Re: system and surroundings

Postby William Satyadi 2A » Wed Jan 17, 2018 5:06 pm

I agree with Michelle, since we are supplying heat to a copper kettle, we are adding heat to our system, not to our surroundings. I don't think it counts as a system, but rather the boundary of the outer boundary of the system.

Janine Chan 2K
Posts: 71
Joined: Fri Sep 29, 2017 7:04 am

Re: system and surroundings

Postby Janine Chan 2K » Wed Jan 17, 2018 8:56 pm

The kettle should be part of the system, which is why the kettle is included when calculating the heat that must be supplied. I guess if you think about it, the kettle must be heated first before the water can be heated.

Return to “Thermodynamic Systems (Open, Closed, Isolated)”

Who is online

Users browsing this forum: No registered users and 1 guest