Problem: The scene below represents a physical change taking place in a piston-cylinder assembly:Is ΔHsys +, −, or 0?

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The scene below represents a physical change taking place in a piston-cylinder assembly:

Is ΔHsys +, −, or 0?

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.