The correct answer for this question is the statement 'the kinetic energy of the particles increases'. As the temperature of gas goes up, the kinetic energy of the particles increases because their velocities increase. This is because particles get excited and hit each other more - leading to increase in kinetic energy.
Noble gases hardly ever participate in chemical reactions because they already have 8 valence electrons and are the most stable among other elements.
Therefore, C. noble gases is the correct answer.
Hope this would help~
Answer:
10.7 g of H₂. Last option
Explanation:
The reaction shows that 1 mol of N₂ reacts with 3 moles of hydrogen to produce ammonia.
Let's make a rule of three with the reactant, to find the relation.
We need to convert the mass of N₂ to moles
50 g / 28g/mol = 1.78 moles
The equation is: N₂ + 3H₂ → 2NH₃
Ratio is 1:3
1 mol of N₂ reacts with 3 moles of hydrogen to produce ammonia
Therefore 1.78 moles will react with (1.78 . 3 ) / 1 = 5.36 moles
We convert the moles to mass to find out the answer
5.36 mol . 2g / 1 mol = 10.7 g
Answer:
Kf = [[Co(NH₃)₆]³⁺] / [Co³⁺] [NH₃]⁶
Last step: [Cu(NH₃)₅]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₆]³⁺(aq)
Explanation:
When the Co³⁺ ion is in presence of ammonia molecules in an aqueous solution, the hexahydrated complex is formed, following the equilibriums:
Co³⁺(aq) + NH₃(aq) ⇄ [Co(NH₃)]³⁺(aq) K₁
[Co(NH₃)]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₂]³⁺(aq) K₂
[Co(NH₃)₂]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₃]³⁺(aq) K₃
[Co(NH₃)₃]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₄]³⁺(aq) K₄
[Co(NH₃)₄]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₅]³⁺(aq) K₅
<em>[Cu(NH₃)₅]³⁺ + NH₃(aq) ⇄ [Co(NH₃)₆]³⁺(aq) </em> K₆ → Last step
Global reaction:
Co³⁺(aq) + 6 NH₃(aq) ⇄ [Co(NH₃)₆]³⁺(aq)
Based in the global reaction, Kf is defined as:
<em>Kf = [[Co(NH₃)₆]³⁺] / [Co³⁺] [NH₃]⁶</em>
