A student performing this experiment notices that the PV values in column (f) gr

Question

A student performing this experiment notices that the PV values in column (f) gradually get smaller as the experiment continues. Suggest a possible cause for this.

EXPERIMENT 9 Report Sheet 590 mL 1. Volume of filter flask 2. Length of tube in flask 3. Radius of tube 4. Volume of tube in flask (V 3.14 Lr2) 5. Volume of air in flask (Subtract line 4 from line 1. Thern b.30 4.53 S35 cmm subtract another 50.0 mL to account for the volume of water in the flask.) .12 cm Hg 6. Atmospheric pressure 7. Pressure/Volume Data Total Air Volum(c) C Fl PV K Column (mL) line 5+Colun Height (cm Hg) column(cm Hg) Colu Column Height Pressure in Syringe Volume (mL)column 30.0 (e) times Column (b) (cm H2O) (c), divide by 13.6 (d) + Li 565 S55 550 1.30 xto 50.494 A.0 24.5 25.0 74. 20.0 77.1 1.28 xto 15.0 315 1 32 7 10.0 2.32 5.0 535 13.0 0.0

Explanation / Answer

Ans:

According to Boyles law, Pressure is inversely proportional to the Volume. and PV = constant

Therefore, As pressure is increases (column e) and volume decreases (column b) the product of PV decresases.

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