Which of the substances A, B,or C has the hig | vedclass

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(C) The heat supplied $Q$ is given by $Q = mc\Delta T$,where $m$ is the mass,$c$ is the specific heat,and $\Delta T$ is the change in temperature.Assu

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$C$

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(C) The heat supplied $Q$ is given by $Q = mc\Delta T$,where $m$ is the mass,$c$ is the specific heat,and $\Delta T$ is the change in temperature.Assuming the rate of heat supply $P = Q/t$ is constant,we have $P \cdot t = mc\Delta T$.Therefore,$c = \frac{P \cdot t}{m \cdot \Delta T}$.For a given mass $m$ and a fixed temperature change $\Delta T$,the specific heat $c$ is directly proportional to the time $t$ taken $(c \propto t)$.From the graph,for a given temperature increase $\Delta T$,the substance $C$ takes the maximum time $t$. Thus,substance $C$ has the highest specific heat.

Which of the substances $A, B$,or $C$ has the highest specific heat? The temperature-time graph is shown.

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