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When 20 g o...

Question

When $20 g$ of $C a C O_{3}$ were put into $10$ litre flask and heated to $800^{\circ} C, 35$ % of $C a C O_{3}$ remained unreacted at equilibrium. $K_{P}$ for decomposition of $C a C O_{3}$ is:

A

1.145 a t m

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B

0.145 a t m

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C

2.145 a t m

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D

3.145 a t m

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Solution

The correct option is C $1.145 a t m$
$\begin{matrix} C o n c o f C O_{2} = 0.2 \times 0.65 P V = n R T P = \frac{n}{v} R T \Rightarrow \frac{0.65 \times 0.2}{10} \times 0.0821 \times 1.73 = 1.145 a t m K_{p} = P_{C O_{2}} = 1.145 \end{matrix}$

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Q. When 20g of CaCo3 were put into 10 litre flask and heated to 800°C,30% of CaCo3 remained unreacted at equilibrium K_pfor decomposition of CaCo3 will be -------
1)1.145atm 2)1.231 atm
2)2.146 atm 4)3.145 atm

20 g

{C a C O}_{3}

10

litre flask and heated to

800

30

{C a C O}_{3}

remained unreacted at equilibrium.

K_{p}

for decomposition of

{C a C O}_{3}

20 g

C a C O_{3}

10

litre flask and heated to

800^{\circ} C, 15 %

C a C O_{3}

remained unreacted at equilibrium. Calculate

K_{p}

for the decomposition of

C a C O_{3}

20 g

C a C O_{3}

10 l i t r e

flask and heated to

800^{\circ} C

35 %

C a C O_{3}

remained unreacted at equilibrium.

K_{P}

for decomposition of

C a C O_{3}

20 g

C a C O_{3}

10

litre flask and heated to

800^{\circ} C, 30

C a C O_{3}

remained unreactable equilibrium.

K_{P}

for decompostion of

C a C O_{3}

will be___________.

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