Gases

Question 1

Structure of Gases

Answer 1

1) particles moving fast 2) empty space 3) exerting force on outside “wall” … bouncing off

Question 2

Pressure

Answer 2

Force / Area

Question 3

Difference in Pressure Areas

Answer 3

Difference flows from high –> low pressure. The greater the difference, the stronger the flow

Question 4

Atmospheric Pressure

Answer 4

“atm”…..the higher the altitude, the higher the pressure

Question 5

Factors Affecting Pressure of Gas

Answer 5

1) speed of particle movement 2) volume of container and 3) # of gas particles present

Question 6

Measures Air Pressure

Answer 6

Barometer

Question 7

Measures Gas Pressure in a Container

Answer 7

Manometer

Question 8

Boyle’s Law

Answer 8

P1 x V2 = P2 x V2 (inverse proportion)

Question 9

Charles’ Law

Answer 9

P1 / T1 = V2 / T2 (direct proportion)

Question 10

Avogrado’s Law

Answer 10

V1 / n1 = V2 / n2 (direct p)

Question 11

Ideal Gas Law

Answer 11

PV = nRT

Question 12

Combined Gas Law

Answer 12

P1 x V1 / T1 = P2 x V2 / T2

Question 13

Standard Conditions

Answer 13

P = 1 atm, V = 22.4 L (1 mol of any gas), T = in Kelvin,

Question 14

Density @ STP

Answer 14

D = molar mass (g) / 22.4 L/mole

Question 15

Density Law

Answer 15

D = P (molar mass) / R x T

Question 16

Molar Mass of a Gas

Answer 16

MM = mass (g) / moles