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8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.