Consider I have two type of cooking kettles, which the shape is just like a pure tube with the volume is 1000 cc (1 liter) with the radius and the height as below (volume=pi*r^2*h):
The first kettle: cross-section radius=5.6419cm and the height=10cm.
The second kettle: cross-section radius=3.9894cm and the height=20cm.
Those two kettles filled up with the same kind water from a same source. Consider that I have a small stove that that its flame will be enough to boil the water inside those kettles. Also consider that those kettles has enough additional height so the water will not get spilled when it start boiled. Then my questions are:
- Which one will be get boiled faster (shorter time)?
- When they are get boiled, which one is healthier (due to it distribute the heat uniformly to that water inside the kettle)?
Edit: Water will be filled up from top. Say that there is a small cap to fill water into it. There is no other hole. Flame on the stove are put the same distance for both the kettles, close enough so the flame will be effective to heat the water.