A mass of gas at \(7^{\circ} \mathrm{C}\) and \(70 \mathrm{~cm}\) of mercury has a volume of 1200 cm3.
Determine its volume at \(27^{\circ} \mathrm{C}\) and a pressure at \(75 \mathrm{~cm}\) of mercury.

A. \(1200 \mathrm{~cm}^{3}\)  
B. \(1378 \mathrm{~cm}^{3}\)
C. \(4320 \mathrm{~cm}^{3}\)
D. \(4629 \mathrm{~cm}^{3}\)

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Correct Answer: A