Hey Water, Can I drink you?
The way we pollute water, me thinks thatone day we will all have to go to Mars to get some drinking water... So, NASA decides to send a spaceship to Mars to explore this possibility... The spaceship breaks the law of relativity using a loophole and reaches Mars within an Earth day. They reach Mars... find the frozen water in the lakes, take it to a region of 5 degrees C in Mars, melt it and then filter it. finally, to check safety of drinking it, he finds the pH which is close to 8. He goes on to check the chemical components of water thinking that there must be something basic in the water but finds it to be pure water. Explain the paradox.
posted by Born a Libran at 10/13/2005 10:50:00 AM
2 Comments:
I feel that it has something to do with the two issues:
1. Temperature effect on pH: Water has a pH of 7.0 only at 25C. So now decreasing the temperature will increase the pH(shift the equilibrium of H+ and OH- ions which changes the Kw of the reaction H20--> H+ + OH- )
(But even with the temperature correction it will increase only to ~7.5, so there must be some other effect too).
2. Measurement errors: Measuring the pH of pure water is always tricky, since there are very few ions that can be picked up by the electrode. Further when you include the effect of temperature on the pH probe, I think we can explain the pH of pure water being 8.0.
I think our friend can safely drink that water. There is nothing wrong with it.
@
I give it to atma Tripta... He has got the answer.... And the points should reflect that...
Dude, how abt updating the puzzle u put in...
BAL
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