Display MoreParadigmnoia "Of course, it could happen that the reaction did make some convenient round numbers"
Here's a clue " I filled a large bucket with water and partially submerged the cell in it:"
Here's another clue... Anders Celsius would have measured the temperature as another round number..
What equilibrium temperature would you expect 5 litres of water with a 70 w lightbulb partially submerged in it to reach?
I would expect a high chance of electrocution finding out since the bulb glass is a high risk of breakage with a high thermal gradient in such a scenario...
Anyways, since the TC voltage was measured using a voltmeter, it should look something like this (image below), if it makes you feel any better....