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Vlad1618 [11]
3 years ago
9

When argon is placed in a container of neon, the argon spontaneously disperses throughout the neon because __________?

Chemistry
2 answers:
ella [17]3 years ago
7 0
The  argon    spontaneously  disperses   throughout   the  argon   because  dispersion  of  argon  atom   produces  an  increase  in  disorder.The  disorder  of  element  is  measured  by  use  of  entropy.According  to  the  second  law  of  thermodynamic  in  a  closed  system tend  to maximize entropy.
Anna35 [415]3 years ago
5 0
Answer is: the dispersion of argon atoms produces an increase in disorder.
Argon and neon are gases, so they have high kinetic energy and move through space (gases move more disorderly. Entropy (amount of disorder) of system increases, the higher the entropy the greater is disorder.
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The  mass  of water formed  is


<u><em>calculation</em></u>

Use  the  ideal   gas  equation   to  calculate the  moles of  NH3  and O2

that  is  Pv= n RT

where;  P= pressure,  

V=  volume,

n = number  of  moles,

R=gas   constant  = 0.0821  l .atm/ mol.K

make n the formula of  the subject  by diving   both side  by  RT

n =  PV /RT

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n= (1.50 atm  x 12.5 L) /(  0.0821 L. atm /mol.k   x 298 K)  =0.766  moles

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write the reaction  between  NH3  and  O2

4 NH3  + 5 O2  →4 No  +6H2O


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0.766 x 6/4 =1.149 moles of H2O


0.784  moles of O2   reacted to  produce  0.784  x 6/5=0.9408  moles  of H20


since  O2  is totally  consumed, O2  is the limiting  reagent  and therefore  the  moles of H2O  produced=  0.9408  moles


mass  of  H2O  = moles x molar mass

 from  periodic table the  molar mass  of H2O  =  (1 x2)+16= 18  g/mol

mass = 18 g/mol  x 0.9408  moles= 16.93  grams


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