Question

At what temperature is water at its greatest density​

Answer 1

Answer:

$3.98^oC$

Explanation:

We usually approximate the density of water to about $1000 kg/m^3$ at room temperature. In terms of the precise density of water, this is not the case, however, as density is temperature-dependent.

The density of water decreases with an increase in temperature after the peak point of its density. The same trend might be spotted if the temperature of water is decreased from the peak point.

This peak point at which the density of water has the greatest value is usually approximated to about $4^oC$. For your information, I'm attaching the graph illustrating the function of the density of water against temperature where you could clearly indicate the maximum point.

To a higher precision, the density of water has a maximum value at $3.98^oC$, and the density at this point is exactly $1000 kg/m^3$.

Answer 2

3.98*c is the answer