Question

Thermodynamics

Answer 1

what do you think?

Answer 2

well, i tried to calculate the amt of Q for each of the interval given by using P= Q/t , i know we have to use the Q=mc(deltaT) and Q=mL bt im not sure how to apply them., i mean what does it mean by temperature of the whole system?

Answer 3

here's what i got. T @1min= 0. T @10min)=0, T @20min =99.6 degrees C, isit correct?

Answer 4

oops T at 1min shd be -10.7 degrees C. i used Q=30000 and Q=mcpdeltaT, oh man having lot of doubts..