A 824.5 ml sample of a gas at 5.2C and 825 mm Hg is cooled to -175C and a volume of 342.3 ml. What will be the new pressure of this gas sample in kPa?

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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