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176 grams of $\mathrm{CO}_2$ can change its temperature from $0^{\circ} \mathrm{C}$ to $30^{\circ} \mathrm{C}$ by absorbing 3600 joules of thermal energy. Molar specific heat of $\mathrm{CO}_2$ in $\mathrm{J} \mathrm{mol}^{-1} \mathrm{~K}^{-1}$ is
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30
$\begin{array}{ll}& \Delta \mathrm{Q}=\mathrm{nC} \Delta \mathrm{T} \\ \Rightarrow & 3600=\left(\frac{176}{44}\right) \mathrm{C} \times 30 \\ \Rightarrow & 3600=120 \mathrm{C} \\ \Rightarrow & \mathrm{C}=30 \mathrm{~J} / \mathrm{mol} \mathrm{K}\end{array}$
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