Two identical beakers A and B contain equal volumes of two different liquids at 60°C each and left to cool down. Liquid in A has density of 8 × 102 kg/m3 and specific heat of 2000 Jkg−1K−1 while liquid in B has density of 103 kgm−3 and specific heat of 4000 Jkg−1K−1. Which of the following best describes their temperature versus time graph schematically? (assume the emissivity of both the beakers to be the same)
(a)
(b)
(c)
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(d)
Two identical beakers A and B contain equal volumes of two different liquids at 60°C each and left to cool down. Liquid in A has density of 8 × 102 kg/m3 and specific heat of 2000 Jkg−1K−1 while liquid in B has density of 103 kgm−3 and specific heat of 4000 Jkg−1K−1. Which of the following best describes their temperature versus time graph schematically? (assume the emissivity of both the beakers to be the same)
(a)
(b)
(c)
(d)
Question ID - 51162 | SaraNextGen Top Answer
Two identical beakers A and B contain equal volumes of two different liquids at 60°C each and left to cool down. Liquid in A has density of 8 × 102 kg/m3 and specific heat of 2000 Jkg−1K−1 while liquid in B has density of 103 kgm−3 and specific heat of 4000 Jkg−1K−1. Which of the following best describes their temperature versus time graph schematically? (assume the emissivity of both the beakers to be the same)
(a)
(b)
(c)
(d)
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Two identical beakers A and B contain equal volumes of two different liquids at 60°C each and left to cool down. Liquid in A has density of 8 × 102 kg/m3 and specific heat of 2000 Jkg−1K−1 while liquid in B has density of 103 kgm−3 and specific heat of 4000 Jkg−1K−1. Which of the following best describes their temperature versus time graph schematically? (assume the emissivity of both the beakers to be the same) |
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(a) |
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(b) |
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(c) |
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(d) |
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mS 
=e
4
−
= 
=
(2) >1
So, A cools down at faster rate.