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Postby Shanzey » Sun Feb 02, 2020 10:45 pm

For question 4A.1b, why is coolant in a refrigerator coil a closed system? Also, for 4A.1f, why is a living plant an open system?

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Re: 4A.1

Postby chrisleung-2J » Sun Feb 02, 2020 10:53 pm

Coolant in a refrigerator coil is a closed system but not isolated since it likely allows for some leakage of heat with the surroundings. Likewise, a plant can be considered an open system because it allows for the exchange of gases and heat with the surroundings.

Sofia Barker 2C
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Re: 4A.1

Postby Sofia Barker 2C » Mon Feb 03, 2020 12:54 am

A living plant is considered an open system because it can exchange both energy and matter with its surroundings. Its ability to perform photosynthesis and absorb nutrients from soil are examples of energy and matter exchange.

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