Thermochemistry
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Thermochemistry
Can someone please explain the difference between an open, closed, and isolated system, and most importantly how this will affect the future manipulation of their corresponding calculations?
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Re: Thermochemistry
An open system means that matter and energy can exchange with the surroundings.
A closed system means that only energy (heat) can be exchanged.
An isolated system means that nothing can exchange with the surroundings.
For our purposes, when we are talking about changing the energy of a system, we typically refer to an open or closed system.
For an open system, we can add or remove the amount of substance.
For a closed system, we can either heat/cool it, do work on the system, or let the system do work on the surroundings.
A closed system means that only energy (heat) can be exchanged.
An isolated system means that nothing can exchange with the surroundings.
For our purposes, when we are talking about changing the energy of a system, we typically refer to an open or closed system.
For an open system, we can add or remove the amount of substance.
For a closed system, we can either heat/cool it, do work on the system, or let the system do work on the surroundings.
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Re: Thermochemistry
An open system is one in which matter and energy can be exchanged with the surroundings. a closed system is one in which only energy can be exchanged with the surroundings. an isolated system is one in which no matter or energy can be exchanged with the surroundings. Not sure how this would affect any calculations though?
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Re: Thermochemistry
Kushal Chatterjee 1J wrote:An open system means that matter and energy can exchange with the surroundings.
A closed system means that only energy (heat) can be exchanged.
An isolated system means that nothing can exchange with the surroundings.
For our purposes, when we are talking about changing the energy of a system, we typically refer to an open or closed system.
For an open system, we can add or remove the amount of substance.
For a closed system, we can either heat/cool it, do work on the system, or let the system do work on the surroundings.
Which method would we use for an open system vs a closed system when calculating the enthalpy?
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