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The heats of combustion of carbon and ca...

The heats of combustion of carbon and carbon monoxide are -393.5 and -283.5 kJ `"mol"^(-1)`, respectively. The heat of formation (in kJ) of carbon monoxide per mole is :

A

`-676.5` KJ

B

`-110.5` KJ

C

110.5 KJ

D

676.5 KJ

Text Solution

Verified by Experts

The correct Answer is:
B
`C_((s))+(1)/(2)O_(2)rarr CO_((g)) , Delta H_(f) = ?`
`Delta H_(f)=Sigma (Delta H_("Comb."))_(R )-Sigma (Delta H_("Comb."))_(P)=(-393.5)-(-283)`
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ALLEN-THERMODYNAMICS -EXERCISE -3
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  2. The Delta(f)H^(Theta) for CO(2)(g), CO(g), and H(2)O(g) are -393.5, -1...

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  3. The heats of combustion of carbon and carbon monoxide are -393.5 and ...

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  4. The standard heat of formation of CS(2)(I) will be, given that the sta...

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  5. The heat of combustion of CH(4(g)), C((g)) and H(2(g)) at 25^(@)C are ...

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  6. Standard enthalpy of formation is zero for

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  7. The standard heat for formation of NO(2) and N(2)O(4) are 8.0 and 2.0...

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  8. M is a metal that forms an oxide M(2)O,(1)/(2)M(2)O rarr M+(1)/(4)O(2)...

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  9. According to equation, C(6)H(6)(l)+15//2 O(2)(g)rarr 6CO(2)(g)+3H(2)O(...

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  10. Heat of combustion of CH(4), C(2)H(6), C(2)H(4) and C(2)H(2) gases are...

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  11. The standard enthalpy of formation of CO is -110 kJ and of CO2 is -394...

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  12. If enthalpies of formation of C(2)H(4)(g),CO(2)(g) and H(2)O(l) at 25^...

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  13. The heat of combustion of carbon and monoxide are -394 and -285 KJ mol...

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  14. When a certain amount of ethylene was combusted, 6226 kJ heat was evol...

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  15. Find out the heat evolved in combustion if 112 litre (at 1 atm, 273 K)...

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  16. A person requires 2870 kcal of energy to lead normal daily life. If he...

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  17. On complete combustion of 2 gm methane 26575 cals of heat is generated...

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  18. X gm of ethanal was subjected to combustion in a bomb calorimeter and ...

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  19. The following are heats of reactions : (A) DeltaH(f)^(@) of H(2)O(l)...

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  20. The enthalpy combustion of a substance

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