Answer:the
BEST description for the energy in the system when Luka is heating up a pot of water on a gas stove is that it is an open system, where matter and energy are exchanged with the surroundings. In this scenario, the pot of water on the gas stove is not isolated or closed off from the surroundings. Heat is being transferred from the gas stove to the water, causing the water to heat up and eventually reach its boiling point. This transfer of heat is an example of energy exchange between the system (pot of water) and the surroundings (the gas stove and the air). Additionally, there may also be some evaporation of water molecules into the air as the temperature increases, which further illustrates the exchange of matter between the system and the surroundings. Therefore, the most appropriate description is that this is an open system, where both matter (in the form of water molecules) and energy (in the form of heat) are exchanged with the surroundings.
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