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The reaction CaCO(3) to CaO + CO(2) is a...

The reaction `CaCO_(3) to CaO + CO_(2)` is a _______ reaction .

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The correct Answer is:
decomposition
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It is planned to carry the reaction CaCO_(3)(s) hArr CaO (s) +CO_(2)(g) at 1273K and 1 bar (a) Is this reaction spontaneous at this temperature and pressure ? (b) Calculate the value of (i) K_(p) at 1273 K for the reaction and (ii) partial pressure of CO_(2) at equilibrium Given Delta_(f) H^(@) values ( kJ mol^(-1)) : CaCO_(3)(s) =-1206.9, CaO(s)= - 635.1, CO_(2)(g) = - 393.5 S^(@) value (JK^(-1) mol^(-1)) CaCO_(3)(s) =92.9, CaO(s) = 39.8, CO_(2)(g) = 213.7 .

Equilibrium constant K_(p) for the reaction CaCO_(3)(s) hArr CaO(s) + CO_2(g) is 0.82 atm at 727^@C . If 1 mole of CaCO_(3) is placed in a closed container of 20 L and heated to this temperature, what amount of CaCO_(3) would dissociate at equilibrium?

Knowledge Check

  • If the standard molar enthalpy of formation of CaO_((s)), CO_(2(g)) "and" CaCO_(3(s)) is -635, -393 "and" -1207 kJ mol^-1 respectively, the Delta_r H^@ in kJ mol^01 for the reaction CaCO_(3(s)) to CaO_((s)) + CO_(2(g)) is ________ .

    A
    `+965`
    B
    `+2235`
    C
    `+179`
    D
    `-179`

  • At 27^(@)C, K_(p) value for the reaction CaCO_(3)(s) hArr CaO (s) + CO_(2)(g) , is 0.1 atm. K_(C) value for this reaction is

    A
    `4 xx 10^(-3)`
    B
    `6 xx 10^(-3)`
    C
    `2xx 10^(-3)`
    D
    `9 xx 10^(-3)`

  • For the reaction, CaCO_3 (s) to CaO(s) +CO_2(g) , which is correct representation ?

    A
    `K_p =(P_(CO))_2`
    B
    `K_p=K_c(RT)`
    C
    `K_c=(CO_2)//1`
    D
    All of these

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    Each question contain statement-1 (Assertion) and statement-2 (Reason) Examine the statements carefully and work the correct answer according to the instruction given below : Statement - 1 : CaCO_(3) rarr CaO + CO_(2) is not redox reaction. Statement - 2 : C, Ca, O do not change their oxidation number in the reaction.

    At 27^(@)C, K_(p) value of reaction CaCO_(3)(s) hArr CaO(s) + CO_(2)(g) is 0.1 atm The K_(c) value for this reaction is

    For the reaction : CaCO_(3) (s) hArr CaO (s) + CO_(2) (g)

    The reaction CaCO_(3)(s) hArr CaO(s)+CO_(2)(g) reaches the state of equilibrium when

    The equilibrium constant for the given reaction, CaCO_(3(g)) rarr CaO_(s) +CO_(2(g)) is given by :

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