AU=q + w H=U+PV ΔΗ-ΔU+ ΡAV w =-PAV 1 L-atm = 101.325 J 1. The neutralization reaction that occurs between baking soda (sodium bicarbonate) and vinegar (acetic acid) is often used for making homemade...

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Extracted text: AU=q + w H=U+PV ΔΗ-ΔU+ ΡAV w =-PAV 1 L-atm = 101.325 J 1. The neutralization reaction that occurs between baking soda (sodium bicarbonate) and vinegar (acetic acid) is often used for making homemade volcanoes because the products are water, carbon dioxide (gas), and sodium acetate. If this reaction is performed in a flask with a balloon placed over the top, the balloon will inflate with CO2 gas. For this reaction, the system, determine the signs of q, w, and AU. w = AU = Calculate the work done (in Joules) if the gas expands against a vacuum. Calculate the work done (in Joules) if the gas expands against a constant pressure of 3.5 atm.