08. A sample of a gas at 100°C, occupies 275 mL at 1.52atm. What volume will it occupy at 2.75 atm and 200°C?

302ml

Explanation:

using PV=NRT for the first given piece of information, we need to find N, 1.52x275=Nx8.31x100

will give an N value of 0.5

now we substitute this into the second given piece of information to find V:

2.75xV=0.5x8.31x200

will give a V value of 302ml

since they used the SI units, the pressure given in atm must be converted into pa by multiplying it with 101.3x10^3

1.52atm will be 153976pa

2.75atm will be 278575pa

also the temperature was given in °C but the SI unit is in K

so to convert, we just add 273

100°C will be 373K

and 200°C will be 473K

use the same technique to find N first, substitute it into the second piece of information to get V

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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