Question

how many minutes does it take water to reach 40° c on a stove?

Answer 1

@Vocaloid

Answer 2

ugh I used to know the equation for this

but this website gives me an estimate of about 2 minutes http://www.physics-chemistry-class.com/chemistry/boiling-water.html

Answer 3

if you want a more rigorous solution you'd have to figure out the heat needed to raise the temp. of water from room temp to 40 using q = mc*deltaT
then search what the average power on a typical stove is to figure out the time needed to produce that much heat