For which of the following reactions- Kp - K C - A- N 2 g -3 H 2 g - 2 NH 3 g B- PCl 3 g - Cl 2 g - P Cl 5 g C- H 2 g - Cl 2 g - 2 HCl g D- CaCO 3 s - CaO s - CO 2 g

The correct option is C H_2(g) +Cl_2(g) ⇋ 2HCl(g) nbsp;K_P=K_C(RT)^Δ n_g if Δ n_g=0, K_P=K_C Δ n_g is the number of moles of gaseous products number of mo ...

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Standard XII

Chemistry

Law of Mass Action

For which of ...

Question

For which of the following reactions, $K_{P} = K_{C}$ ?

P C l_{3} (g) + C l_{2} (g) ⇋ P C l_{5} (g)

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H_{2} (g) + C l_{2} (g) ⇋ 2 H C l (g)

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N_{2} (g) + 3 H_{2} (g) ⇋ 2 N H_{3} (g)

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C a C O_{3} (s) + ⇋ C a O (s) + C O_{2} (g)

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Solution

The correct option is B $H_{2} (g) + C l_{2} (g) ⇋ 2 H C l (g)$
$K_{P} = K_{C} (R T)^{Δ n_{g}}$
if $Δ n_{g} = 0, K_{P} = K_{C}$
$Δ n_{g}$ is the number of moles of gaseous products - number of moles of gaseous reactants in a balanced equation.
for reaction in (b) $Δ n_{g} = 0$
so, for (b), $K_{P} = K_{C}$

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Similar questions

Q. In what reaction of the following, work is done by the system on the surroundings?
(a) Hg (l) → Hg (g)
(b) 3O₂ (g) → 2O₃ (g)
(c) H₂ (g) + Cl₂ (g) → 2HCl (g)
(d) N₂(g) + 3H₂ (g) → 2NH₃ (g)

Q. Find out the value of

K_{c}

for each of the following equilibria from the value of

K_{p}

(a)

2 N O C l_{(g)} ⇌ 2 N O_{(g)} + C l_{2 (g)}; K_{p} = 1.8 \times 10^{- 2} a t m

500 K

(b)

C a C O_{3 (s)} ⇌ C a O_{(s)} + C O_{2 (g)}; K_{p} = 167 a t m

1073 K

Q. Find out the value of

K_{C}

for each of the following equilibrium respectively from the value of

K_{P}

.
(i)

2 N O C l (g) ⇌ 2 N O (g) + C l_{2} (g); K_{P} = 1.8 \times 10^{- 2}

500

K
(ii)

C a C O_{3} (s) ⇌ C a O (s) + C O_{2} (g); K_{P} = 167

1073

Q. For which of the following reactions, the degree of dissociation cannot be calculated from the vapour density data

2 H I_{(g)} ⟶ H_{2 (g)} + I_{2 (g)}

II.

2 N H_{3 (g)} ⟶ N_{2 (g)} + 3 H_{2 (g)}

III.

2 N O_{(g)} ⟶ N_{2 (g)} + O_{2 (g)}

IV.

P C l_{5 (g)} ⟶ P C l_{3 (g)} + C l_{2 (g)}

The equilibrium constant for the reaction,

CaCO₃(s) ⇌ CaO(s) + CO₂(g), is

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Law of Mass Action

Standard XII Chemistry

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For which of the following reactions, KP=KC ?

The correct option is B H2(g)+Cl2(g) ⇋ 2HCl(g)KP=KC(RT)Δng if Δng=0, KP=KC Δng is the number of moles of gaseous products - number of moles of gaseous reactants in a balanced equation. for reaction in (b) Δng=0 so, for (b), KP=KC

For which of the following reactions, $K_{P} = K_{C}$ ?