1.a- sodium(Na) b-nickel(Ni) c-iron (Fe)
3,000 operational satellites currently orbiting earth
Answer:
for the reaction is -3.059 kJ/mol.
Explanation:
Reaction equilibrium: ![N_{2}O_{4}(g)\rightleftharpoons 2NO_{2}(g)](https://tex.z-dn.net/?f=N_%7B2%7DO_%7B4%7D%28g%29%5Crightleftharpoons%202NO_%7B2%7D%28g%29)
Reaction quotient (Q) for this reaction at
and
is:
= ![\frac{(0.122)^{2}}{0.453}](https://tex.z-dn.net/?f=%5Cfrac%7B%280.122%29%5E%7B2%7D%7D%7B0.453%7D)
= 0.0329
We know,
, where
is standard free energy change, R is gas constant and T is temperature in kelvin scale.
Here,
= 5.40 kJ/mol
So, ![\Delta G=(5.40\times 10^{3}J/mol)+[8.314J.mol^{-1}.K^{-1}\times 298K\times ln(0.0329)]](https://tex.z-dn.net/?f=%5CDelta%20G%3D%285.40%5Ctimes%2010%5E%7B3%7DJ%2Fmol%29%2B%5B8.314J.mol%5E%7B-1%7D.K%5E%7B-1%7D%5Ctimes%20298K%5Ctimes%20ln%280.0329%29%5D)
= -3059 J/mol
= -3.059 kJ/mol
Answer:
b and d hope this helped
Explanation:
turtles don't have gills and neither does owls so anything
without gills
V2 = 250 ml
Explanation:
Given:
P1 = 0.99 atm. V1 = 240 ml
P2 = 0.951 atm. V2 = ?
We can use Boyle's law to solve for V2
P1V1 = P2V2
V2 = (P1/P2)V1
= (0.99 atm/0.951 atm)(240 ml)
= 250. ml