CBSE Class 7 Answered
A Chemical is unstable at room temperature, so it is kept in a refrigerator at -38oC. Once removed from the fridge, its temperature rises at a rate of 4oC per minute. Assuming a bottle of the chemical was exactly -38oC when removed from the fridge, what will its temperature be five minutes after removal from the fridge?
Asked by Topperlearning User | 10 Oct, 2014, 03:41: PM
Expert Answer
The temperature at which the chemical is stored = -38oC
The rate of rise of temperature after the sample is removed from refrigeration= 4oC per minute
Rise in temperature after 5 minutes = 4x5 = 20oC
Net temperature of the chemical after 5 minutes = -38 + 20
= -18oC
Answered by | 10 Oct, 2014, 05:41: PM
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