Question

An insulated beaker with negligible mass contains liquid water with a mass of 0.320 kg and a temperature of 74.4 ∘C

How much ice at a temperature of -21.0 ∘C∘C must be dropped into the water so that the final temperature of the system will be 26.0 ∘C∘C ?

Take the specific heat of liquid water to be 4190 J/kg⋅KJ/kg⋅K , the specific heat of ice to be 2100 J/kg⋅KJ/kg⋅K , and the heat of fusion for water to be 3.34×10⁵ J/kgJ/kg .

Answer 1