If you combine 300.0 ml of water at 25.00 ∘ c and 120.0 ml of water at 95.00 ∘ c, what is the final temperature of the mixture? use 1.00 g/ml as the density of water.

Answer : The final temperature of the mixture is

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

And as we know that,

Mass = Density × Volume

Thus, the formula becomes,

where,

c = specific heat of water =

= density of water = 1.00 g/mL

= volume of water at = 300.0 mL

= volume of water at = 120.0 mL

= final temperature of mixture = ?

= initial temperature of water =

= initial temperature of water =

Now put all the given values in the above formula, we get

Therefore, the final temperature of the mixture is

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

there are two significant figures.