The equilibrium constant is given for one of the reactions below. determine the value of the missing equilibrium constant. 2 hd(g)

Question

The equilibrium constant is given for one of the reactions below. determine the value of the missing equilibrium constant. 2 hd(g) ⇌ h2(g) + d2(g) kc = 0.28 6 h2(g) + 6 d2(g) ⇌ 12 hd(g) kc = ? a) 0.00048 b) 1.2 c) 1.62 d) 2075 e) 0.81

Major Spinka DVM · Accepted Answer

The equilibrium constant is equal to concentration products raised to their stoichiometric coefficients, divided by the same for the reactants.For the first reaction: For the second reaction: This is choice D.

Major Spinka DVM · Answer

Given the original equation of 2 HD(g) ⇌ H2(g) + D2(g)  with Kc = 0.28 and asked for the kc of the equation 6 H2(g) + 6 D2(g) ⇌ 12 HD(g), we can see that the equation 1 is reversed and multiplide by 6. in this case, the reverse means kc is equal to 1/0.28 and that the multiplication by 6 raises the new kc to 6. the new kc is equal to D. 2075

Major Spinka DVM · Answer

- Kc = 6.63Solution:- First given equation is: The equilibrium expression for this equation is written as:The second given equation is: The equilibrium expression for this equation is written as:Comparing these two expressions, to get this second expression from the first one, we need to do the fifth power of first equilibrium expression.Hence, Plug in the value of Kc in it from first expression,    = 6.63So, the Kc of second equation is 6.63.

Major Spinka DVM · Answer

12.7551Explanation:The given chemical equation follows:The equilibrium constant for the above equation is 0.28.We need to calculate the equilibrium constant for the reverse equation of above chemical equation, which is:The equilibrium constant for the reverse reaction will be the reciprocal of the initial reaction.If the equation is multiplied by a factor of '2', the equilibrium constant of the reverse reaction will be the square of the equilibrium constant  of initial reaction.The value of equilibrium constant for reverse reaction is:Hence, the value of equilibrium constant for reverse reaction is 12.7551.

Major Spinka DVM · Answer

Answer choice 'D' => Kc(2) = 581Explanation:2HD ⇄ H₂ + D₂ => Kc(1) = [H₂][D₂]/[HD]² => 0.285H₂ + 5D₂ ⇄ 10HD => Kc(2) = [HD]¹⁰/[H₂]⁵[D₂]⁵ = 1/(Kc(1))⁵ = 1/(0.28)⁵ = 581For these type problems, one should 1st write the empirical Kc expression for each equation given. Then compare the expressions and ask 'how can the 1st Kc expression be changed into the 2nd Kc expression?' Apply and substitute given Kc(1) into the Kc(2) expression and solve for numerical results.

Major Spinka DVM · Answer

Kc is simply the ratio of the concentration of the productover the reactant, that is: Kc = [NO2]^2 / [N2O4] = 1.46 Now since the overall equation or concentration ismultiplied by 5, therefore:{[NO2]^2 / [N2O4]}^5 = 1.46^5 =>Kc = 6.63

Major Spinka DVM · Answer

The answer is C) 6.63Explanation:When the coefficients in a balanced equation are multiplied by a factor, the resulting equilibrium constant is raised to this factor.In this case, you have the following equilibrium:N₂O₄(g) ⇌ 2 NO₂(g) Kc = 1.46In which the coefficients are 1 (for N₂O₄) and 2 (for NO₂)In the second equation, notice that you have the coefficients of the first equation multiplied by 5 (1 x 5= 5 for N₂O₄; 2 x 5= 10 for NO₂) :5 N₂O₄(g) ⇌ 10 NO₂(g) Thus, to obtain the equilibrium constant of the second equation (Kc'), you have to raise the first equilibrium constant (Kc) to 5:K'c= (Kc)⁵= (1.46)⁵= 6.63

Major Spinka DVM · Answer

To calculate Kc of the second step, we must observe the first reaction.If we rotate the first reaction and multiplay it by 2 we get the same thing.So the rotation means 1/kc(first reaction)And by multiplying it by 2, K should be squared. Kc2=1/(kc1)^2=6.92*10^-10

Major Spinka DVM · Answer

the value of the missing equilibrium constant is E. 7.30Solution:N2O4(g) ⇌ 2 NO2(g)Kc = 1.465 N2O4(g) ⇌ 10 NO2(g)Kc =?If 1 atom of N2O4(g) is 1.46So to get 5 atoms of N2O4(g), you will simply multiply it by 5.1.46 x 5 = 7.30

Prof. Cristobal Welch

The equilibrium constant is given for one of the reactions below. determine the value of the missing equilibrium constant. 2 hd(g)

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