Gases 0.0 / 5 ? PhysicsThermal physicsA2/A-levelAQA Created by: argyrouCreated on: 08-05-18 13:06 what is the relationship of Boyles law? P__1/V 1 of 24 What is an ideal gas? A gas that obeys the gas laws (boyles/charles) 2 of 24 What is an isothermal change? A change in volume and pressure of a substance which takes place at constant temperature 3 of 24 What is the relationship of charles law? V__T 4 of 24 What is an isobaric change? change at constant pressure 5 of 24 What is the equation for work done to change the volume of a gas? WD=p_V 6 of 24 What is the pressure law equation/relationship? P__T 7 of 24 How would you calculate mass using avagadros constant and RFM? Ms=M/NA 8 of 24 How would you calculate the number of moles in a mass Ms? n=Ms/M 9 of 24 How would you calculate the number of molecules in mass Ms? N=N_Ms/M 10 of 24 What is the gradient of a PV against T graph? nR = number of moles x molar mass constant R 11 of 24 What is the ideal gas equation using the molar mass constant? pV=nRT 12 of 24 What is the ideal gas equation using boltzmans constant K? pV=NKT 13 of 24 What is temperature measured in when using gas calculations? kelvins 14 of 24 What is the equation for root mean square speed Crms? Crms=[C1²+C2²+....+CN²/N]^1/2 15 of 24 What happens to the distribution curve of No of molecules agaisnt speed when temperature is raised? The curve become flatter and broader because there are more molecules moving at higher speeds 16 of 24 What are the 5 assumptions about molecules in a gas that must be made in order to derive the kinetic theory equation? R_A_V_E_D 17 of 24 What is the kinetic theory equation in terms of pV=? pV=Nm(Crms)²/3 18 of 24 What equation links pressure and density? P=_(Crms)²/3 19 of 24 What is kinetic energy as an equation using Crms? Ek=m(Crms)²/2 20 of 24 What is the mean kinetic energy of a molecule of an ideal gas? _ KT 21 of 24 What is the total kinetic energy of one mole? _ RT 22 of 24 What is the total kinetic energy for n moles of an ideal gas? _ nRT 23 of 24 What equation would you use to calculate the internal energy of an ideal gas? E= _ nRT 24 of 24
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