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Yes, a closed system can be changed by changing temperature (heating or cooling), pressure, or volume. For example if you have mercury in a thermometer, outside temperature will cause a change in energy of the system.
Closed systems can be changed by changing either the temperature, pressure, or volume of the given closed system. No matter can flow in and/or out of a closed system, but energy can still be transfered between the system and its surroundings.
Ryan_K_1K wrote:What were the ways that a closed system can be changed? Was it only by changing the temperature and/or volume?
A closed system can have changes that do not affect the amount of "stuff" that is within it's container.
The volume and pressure and have an effect on the system, so long as the amount of matter is not disturbed, as it is closed.
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