ممكن حل سؤالين في الكمياء

[biochemistry girl]

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D20) An ideal gas is contained in a cylinder with a volume of 2.0 x 102 mL at a temperature
of 30 0C and pressure 710 torr. The gas is then compressed to a volume of 25 mL and
the temperature is raised to 8200C. What is the new pressure of the gas?
aa- 2.05 x 104 torr b- 2.05 x 10-4 c- 205 torr d- 0.205

D21) A mixture of four gases has a total pressure of 1400 mmHg at 298 K and contains 2.2 mol O2, 2.4 mol N2, 2.6 mol H2 and 2.8 mol Ar. The partial pressure of H2 is: (Chap 5)
a- 364 mmHg
b- 308 mmHg c- 392 mmHg d- 336 mmHg