Num determinado equipamento industrial, um líquido de calor específico 0,50 cal/g.°C, entra a 20 °C e sai a 80 °C. Se a vazão desse líquido no equipamento é de 50 kg/min, a potência térmica é, em kcal/min , de:

the first step is making objective observations.

they have to be based on a certain event and can be confirmed by others if it is right or not.

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

where is the photo and the answer choices?