Question

If the cooling power remains constant, what will be the temperature of the system TB after it has been in the freezer for exactly 1 hour

Answer 1

The answer is "-50.424° C".

Step-by-step explanation:

Given:

Time = 1 hour

TB=?

Formula:

`TB= (-T* P)/(m * c_i)`

time (T) = 1 hour

= 3600 second

`t=(3600 -t_2)`

Calculating T_B:

`\to T_B= (-(3600 - t_2) 36.6)/(0.250 * 2090)\\`

`= (-(3600 - 2880) 36.6)/(522.6)\\\\= (-(720) 36.6)/(522.6)\\\\= (-720 * 36.6)/(522.6)\\\\= (-26352)/(522.6)\\\\= -50.424 ^(\circ) C`