Questions
A bucket fulI of hot water cools from 75oC to 70oC in time T1, from 70oC to 65oC in time T2 and from 65oC to 60oC in time T3, then
detailed solution
Correct option is C
According to Newton's law of coolingRate of cooling ∝ Mean temperature difference⇒ Fall in temperature Time ∝θ1+θ22−θ0∵ θ1+θ221>θ1+θ222>θ1+θ223⇒ T1Talk to our academic expert!
Similar Questions
A body cools down from 60°C to 55°C in 30 s. Using Newton’s law of cooling, calculate the approximate time taken by same body to cool down from 5 5°C
to 50°C. Assume that the temperature of surroundings is 45°C.
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