Question

Question :

A body initially at 64 degree celsius cools to 52 degree celsius in 5 minutes , the temperature of surrounding is 16 degree celsius . Find the temperature after further 5 minutes .​

Answer 1

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Answer 2

Answer:

In the first case

80- 64

5

=

80+ 64

=

or 3.2 = K [72 – 0,] -...(i) In the second case,

64- 52

5

64+52

*[ 2-00

or 2.4 = K [58 – 0,] ....(ii)

Dividing (i) by (ii), we get

3.2 72-00 2.4 58- 00 or 1856320 = 17282400 or 0, = 16°C