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based on the following thermochemical equation, which statement is false? group of answer choices the pressure for the process is known. the thermochemical equation represents a physical change. the internal energy of the surroundings increases. the enthalpy change for the gas condensing into a liquid is known. the enthalpy change is endothermic.

User AirLancer
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Answer:

Step-by-step explanation:

The statement "the thermochemical equation represents a physical change" is false.

The given thermochemical equation must represent a chemical change because it involves a change in the chemical composition of the reactants and products. In particular, it describes the condensation of a gas into a liquid, which involves a change in the arrangement of atoms and molecules.

The other statements are true based on the given information:

The pressure for the process is known: This implies that the process is either carried out under constant pressure or the change in volume is negligible.

The internal energy of the surroundings increases: This suggests that the process is endothermic, meaning that energy is absorbed from the surroundings.

The enthalpy change for the gas condensing into a liquid is known: This is implied by the fact that a thermochemical equation is given, which allows us to calculate the enthalpy change for the given reaction.

The enthalpy change is endothermic: This follows from the statement that the internal energy of the surroundings increases, which means that heat is absorbed from the surroundings, making the enthalpy change positive (endothermic).

User Swandog
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