(AFA) Deseja-se aquecer 1,0 L de água que se encontra inicialmente à temperatura de 10 °C

(AFA) It is desired to heat 1.0 L of water that is initially at a temperature of 10 °C to 100 °C under normal pressure, in 10 minutes, using the burning of charcoal. Knowing that the heat released in its combustion is 6000 cal/g and that 80% of the heat released in its combustion is lost to the environment, the minimum mass of charcoal consumed in the process, in grams, and the average power emitted by the brazier, in watts, are: (A) 15; 600 (B) 75; 600 (C) 15; 3000 (D) 75; 3000