Question

the largest of the great lakes lake superior contains about 1.20x10^16 kg of water.If the lake had a temperature of 12 Celsius degrees , how much energy would have to be removed to freeze the whole lake at 0 Celsius degree?

Answer 1

please you have to apply the subsequent formula:
\[\Delta Q=c*m*\theta \]
where Delta Q is the energy that you have subtract for lake water in order to freeze it, theta is the initial temperature of lake water, and c is the specific heat of water. Usually we can assume
\[c=4.18 \frac{ joule }{ gram*°C }\]