What is the change of entropy for 1/2 mol of nitrogen gas being mixed with 1/2 mol of oxygen gas at standard temperature and pressure (stp)? (express answer in units of j/k or j/kmol)

2. what is the change of entropy for one third (1/3) mole each of nitrogen, oxygen and carbon dioxide gases mixed at stp? (express answer in units of j/k or j/kmol)

3. sulfur dioxide gas (so2 (g)) can react with the oxygen gas (o2 (g)) in air to create sulfur trioxide gas (so3 (

(a) find the equilibrium ratio of sulfur trioxide to sulfur dioxide gas at standard conditions in air at 25oc and 1 atm. you can assume that air is 20% oxygen and 80% nitrogen gas by volume.

(b) so3(g) can further react with water vapor to form sulfuric acid, h2so4 (g). air that is in equilibrium with liquid water at 25oc has a partial pressure of h2o (g) of 0.05 atm. find the equilibrium ratio of partial pressures of h2so4 (g) to so3 (g) in air at 25oc.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

i will answer your question if you answer mine

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

answerdmitry mendeleyev made a workable classification of the elements