217- If the molar heat capacity of water and ethylene glycol are $\text{J.mol}^{-1}.\text{K}^{-1}$ equal to $75/4$ and $136/4$ respectively, and the temperature does not change by raising the pressure of five kilograms of the mixed solution of water and ethylene glycol inside a car engine to $1^\circ\text{C}$, approximately how many kilojoules of heat are required? (The mixture of water and ethylene glycol is $50\%$ by mass, $\text{O} = 16,\ \text{C} = 12,\ \text{H} = 1 : \text{g.mol}^{-1}$) (1) $22/85$ (2) $20/94$ (3) $15/97$ (4) $10/47$
\textbf{217-} If the molar heat capacity of water and ethylene glycol are $\text{J.mol}^{-1}.\text{K}^{-1}$ equal to $75/4$ and $136/4$ respectively, and the temperature does not change by raising the pressure of five kilograms of the mixed solution of water and ethylene glycol inside a car engine to $1^\circ\text{C}$, approximately how many kilojoules of heat are required? (The mixture of water and ethylene glycol is $50\%$ by mass, $\text{O} = 16,\ \text{C} = 12,\ \text{H} = 1 : \text{g.mol}^{-1}$)
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(1) $22/85$ \hspace{2em} (2) $20/94$ \hspace{2em} (3) $15/97$ \hspace{2em} (4) $10/47$
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