In the preparation of CaO from CaCO3 using the equilibrium Ca CO 3 s- CaOs- CO 2 g Kp is expressed as log K p -7-282- 8500 Tfor the complete decomposition of CaCO 3- the temperature in celsius to be used is-

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Standard XII

Chemistry

Arrhenius Equation

In the prepar...

Question

In the preparation of $C a O$ from $C a {C O}_{3}$ using the equilibrium
$C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)$
$K_{p}$ is expressed as
$log K_{p} = 7.282 - \frac{8500}{T}$
for the complete decomposition of ${C a C O}_{3}$ , the temperature in celsius to be used is____________.

1167^{o} C

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894^{o} C

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8500^{o} C

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850^{o} C

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Solution

The correct option is A $894^{o} C$
In the preparation of $C a O$ from $C a {C O}_{3}$ using the equilibrium
$C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)$
$K_{p}$ is expressed as
$log K_{p} = 7.282 - \frac{8500}{T}$
For complete decomposition $K_{p} = 1$
$log K_{p} = 0$
$log K_{p} = 7.282 - \frac{8500}{T}$
$0 = 7.282 - \frac{8500}{T}$
$7.282 = \frac{8500}{T}$
$T = 1167.26 K$
$T = 1167.26 - 273.15^{o} C$
$T = 894.11^{o} C$
Thus, for the complete decomposition of ${C a C O}_{3}$ , the temperature in celsius to be used is $T = 894^{o} C$

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Similar questions

In the preparation of

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C a {C O}_{3}

using the equilibrium

C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)

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log K_{p} = 7.282 - \frac{8500}{T}

for complete decomposition of

C a {C O}_{3}

the temperature in celsius to be used is:

Q. In the preparation of CaO from

C a C O_{3}

using the equilibrium

C a C O_{3} (s) ⇌ C a O (s) + C O_{2} (g) K_{p}

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K_{p} = 7.282 - \frac{8500}{T}

for the complete decomposition of

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Q. When limestone is heated, quicklime is formed according to the equation,

C a {C O}_{3} (s) ⇌ C a O (s) + C O_{2} (s)

The experiment was carried out in the temperature range

{800 - 900}^{o} C

. Equilibrium constant

K_{p}

follows the relation,

log K_{p} = 7.282 - 8500 / T

where,

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Q. When limestone is heated, quicklime is formed according to the equation.

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

The experiment was carried out in the temperature range

800 - 900^{o} C,

Equilibrium constant

K_{p}

follows the relation.

l o g K_{p} = 7.282 - \frac{8500}{T}

where, T is temperature in Kelvin. At what temperature the decomposition will give

C O_{2} (g)

at 1 atm?

Q. When limestone is heated, quicklime is formed according to the equation.

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

The experiment was carried out in the temperature range

800 - 900^{o} C,

Equilibrium constant

K_{p}

follows the relation.

l o g K_{p} = 7.282 - \frac{8500}{T}

where, T is temperature in Kelvin. At what temperature the decomposition will give

C O_{2} (g)

at 1 atm?

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In the preparation of CaO from CaCO3 using the equilibriumCaCO3(s)⇌CaO(s)+CO2(g)Kp is expressed aslogKp=7.282−8500Tfor the complete decomposition of CaCO3, the temperature in celsius to be used is____________.

In the preparation of $C a O$ from $C a {C O}_{3}$ using the equilibrium
$C a {C O}_{3} (s) ⇌ C a O (s) + {C O}_{2} (g)$
$K_{p}$ is expressed as
$log K_{p} = 7.282 - \frac{8500}{T}$
for the complete decomposition of ${C a C O}_{3}$ , the temperature in celsius to be used is____________.