I assume what you're asking about is, how does the temperature changes when we increase water's mass, according the formula for heat ?
Well the formula is : [tex]Q=m\cdot c\cdot \Delta t[/tex] (where Q is heat, m is mass, c is specific heat and [tex]\Delta t[/tex] is change in temperature. So according this formula, increasing mass will increase the substance's heat, but won't effect it's temperature since they are not related. Unless, if you want to keep the substance's heat constant, in that case when you increase it's mass you will have to decrease the temperature
