Home
Class 11
CHEMISTRY
The standared enthalpies of formation at...

The standared enthalpies of formation at `298K` for `C C1(g), H_(2)O(g), CO_(2)(g)` and `HC1(g)` are `-106.7, -241.8, -393.7`, and `-92.5kJ mol^(-1)`, respectively. Calculate `DeltaH^(Theta)underset(298K)` for the reaction
`C C1_(4)(g) +2H_(2)O(g) rarr CO_(2)(g) +4HCI_(g)`

Text Solution

Verified by Experts

The enthalpy change of the given reaction will be given as
`DeltaH^(Theta) (CO_(2),g) +4Delta_(f)H^(Theta) (HCI,g)`
`- Delta_(f)H^(Theta) (C CI_(4),g) -2Delta_(f)H^(Theta) (H_(2)O, g)`
` =(-393.7-4 xx 92.5 + 106.7+2 xx 241.8) kJ mol^(-1)`
`=- 173.4 kJ mol^(-1)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.1|26 Videos

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Ex 6.2|27 Videos

  • STOICHIOMETRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|33 Videos

Similar Questions

Explore conceptually related problems

The standard heat of formation of at 298 K for CCl_(4)(g), H_(2)O(g), CO_(2)(g) and HCI(g) are -25.5, -57.8, -94.1 and -22.1 kcal mol^(-1) respectively. Calculate Delta_(r)H^(Theta) for the reaction r CCl_(4)(g)+2H_(2)O(g) rarr CO_(2)(g)+4HCl(g) Hint : Delta_(r)H^(Theta) = sum Delta_(f)H_("Products")^(Theta)- sum Delta_(f)H_("Reactants")^(Theta)

The standard heats of formation at 298 K for C Cl_(4)(g), H_(2)O(g), CO_(2)(g) and HCl (g) are - 25.5, -57.8, -94.1 and -22.1 kcal per mole respectively. Calculate DeltaH^(@) at 298 K for the reaction, C Cl_(4)(g)+2H_(2)O(g) to CO_(2)(g)+4HCl(g)

Knowledge Check

  • At 298 K, the heats of formation fo C Cl_(4) (g), H_(2)O(g), CO_(2)(g) and HCl(g) are -25, -57, -94 and -22 K.cal mol^(-1) respectively. The DeltaH of the reaction: C Cl_(4)(g) +2H_(2)O rarr CO_(2) (g) +4HCl(g)

    A
    `-43` K. cal
    B
    `+72` K.cal
    C
    `14` K.cal
    D
    `-125` K.cal

  • The DeltaH^(@) for CO_(2)(g), CO(g) and H_(2)O(g) are -393.5, -110.5 and -241.8 kJ mol^(-1) respectively.The standard enthalpy change (in kJ) for the reaction : CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g) is

    A
    524.1
    B
    41.2
    C
    `-262.5`
    D
    `-41.2`

  • DeltaH_(t)^(@) for CO_(2)(g) and H_(2)O(g) are -393.5, -110.5 and -241.8 kJ"mol"^(-1) respectively. The standard enthalpy change (in kJ) for the reaction. CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g) is:

    A
    `524.1`
    B
    `41.2`
    C
    `-262.5`
    D
    `-41.2`

    • Similar Questions

    Explore conceptually related problems

    The standard heats of formation at 298K for C Cl_(4)(g),H_(2)O(g),CO_(2)(g) and HCl(g) are -25.5,-57.8,-94.1 and -22.1 kcal mol^(-1) respectively. Calculate DeltaH_(298)^(@) for the reaction. C Cl_(4)(g)+2H_(2)O(g)toCO_(2)(g)+4HCl(g) .

    The DeltaH_(t)^(@) for CO_(2) (g), CO(g) and H_(2)O (g) are -393.5, -110.5 and -241.8 kJ mol^(-1) respectively. The standard enthalpy change (in kJ) for the reaction. CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g) is

    The DeltaH_(f)^(@) for CO_(2)(g), CO(g) and H_(2)O(g) are - 393.5, - 110.5 and - 241.8 kJ mol^(-1) respectively. The standard enthalpy change (in kJ) for the reaction CO_(2)(g)+H_(2)(g)rarrCO(g)+H_(2)O(g) is

    The Delta_(f)H^(@) for CO_(2)(g), CO(g) and H_2O(g) are -393.5, -110.5 and -241.8 kJ mol^(-1) respectively. The standard enthalpy change (inkJ) for the reaction CO_(2)(g) + H_(2)(g) to CO(g) + H_2O(g) is

    the DeltaH_(t)^(@)for CO_(2)(g) , CO(g) and H_(2)O(g) are -393.5 , -110.5 and -241.8 kJ mol ^(-1) respectively, the standed enthalpy change ( in kJ) for the reaction CO_(2)(g)+ H_(2)(g)to CO(g) + H_(2)O(g) is

    Home
    Profile