Question

09. The temperature of a small pudding was -4°C when taken out of a freezer.
The pudding was immediately warmed in a saucepan, and after 8 minutes its temperature
was 16°C
(a) By how many °C had the temperature risen during the 8 minutes?
130%
(b) Given that the temperature of the pudding increased at a constant rate, calculate
(i) the number of minutes it had been warmed when its temperature reached 0°C,
(ii) its temperature when it had been warmed for a total of 24 minutes.
(i am stuck in that my homework quite stop by this )​

Answer 1

(A) the temperature is rised by 20 degrees C
(B)
(i) temperature rised from -4 to 0 degree is +4 degree
Tym taken increase temp by 20 degree C is 8 mins
Tym taken to increase temp by 4 degree is (8/20) * 4 = 1.6 mins
(ii) in 8 minutes temp increased is 20 degree C
In 24 minutes the temperature increase is (20/8)*24= 60 degree C
If temperature increase is 60 degree C then the temperature of substance will be 56 degree C as the original temperature was -4 degree C
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