Figure shows the variation in temperature $\left( {\Delta T} \right)$ with the amount of heat supplied $(Q)$ in an isobaric process corresponding to a monoatomic $(M)$, diatomic $(D)$ and a polyatomic $(P)$ gas. The initial state of all the gases are the same and the scales for the two axes coincide. Ignoring vibrational degrees of freedom, the lines $a, b$ and $c$ respectively correspond to
JEE MAIN 2013, Medium
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On giving same amount of heat at constant pressure, there is no change in temperature for mono, dia and polyatomic.
$(\Delta \mathrm{Q})_{\mathrm{P}}=\mu \mathrm{C}_{\mathrm{p}} \Delta \mathrm{T}\left(\mu=\begin{array}{l}{\text { No. of molecules }} \\ {\text { Avogedro's na }}\end{array}\right)$
or $\Delta \mathrm{T} \propto \frac{1}{\text { no of molecules }}$
$(\Delta \mathrm{Q})_{\mathrm{P}}=\mu \mathrm{C}_{\mathrm{p}} \Delta \mathrm{T}\left(\mu=\begin{array}{l}{\text { No. of molecules }} \\ {\text { Avogedro's na }}\end{array}\right)$
or $\Delta \mathrm{T} \propto \frac{1}{\text { no of molecules }}$
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