zero_nrg,
i dont think super'dud'man knows what he is on about...
If your hotplate thermostat is set at 105oC the hotplate surface (ie the metal) will get to 105oC and the heater element will click off, then come back on when its below the temp. If there is something on top that your trying to heat, ie a bottle of water, the water will abosrb the heat and therefor the hotplate wont be at 105oC where it cuts out until the water above it is at 105oC, this is plain thermodynamics, but if superman wants to disagree with some of the most important foundation theories of chemistry, well.....
If you put 1L of water on the hotplate and let it get to the point where the thermostat clicks off the hotplate at 105, it will be boiling...
If you put 2L of water on the hotplate and let it get to the point where the thermostat clicks off the hotplate at 105, it will be boiling...
If you put 10000L of water on the hotplate and let it get to the point where the thermostat clicks off the hotplate at 105, it will be boiling...
You are right, obviously the more water there is the longer it will take to heat to the thermostat temp of 105oC therefore the longer it will take to boil.
So wheres super'dud'man's point? i dont think he had one.
-AC