Question

13. Suppose tea at 90°C is kept in an open
cup and it takes 20 seconds to cool down
to 80°C. The time taken for cooling from
80°C to 70°C is
(1) less than 20 seconds
(2) equal to 20 seconds
(3) equal to 10 seconds
(4) more than 20 seconds​

Answer 1

Answer:

The answer is option 2

Explanation:

Equal to 20 seconds

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