Two bodies of different materials but of equal mass are heated at uniform rate under identical conditions from 0 ∘ C . One body start melting at 6 0 ∘ C after heating for 2 minutes while the other sta

Question

Two bodies of different materials but of equal mass are heated at uniform rate under identical conditions from 0 ∘ C . One body start melting at 6 0 ∘ C after heating for 2 minutes while the other start melting at 4 0 ∘ C after heating for 4 minutes . The ratio of their specific heats is:

TestHub · Accepted Answer

Let k be the heat supplied per minute, and s 1 ​ , s 2 ​ the specific heats. 2 k = m s 1 ​ × 60 4 k = m s 2 ​ × 40 4 k 2 k ​ = m s 2 ​ ( 40 ) m s 1 ​ ( 60 ) ​ s 2 ​ s 1 ​ ​ = 2 × 60 40 ​ = 3 1 ​

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