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Given that standatrd heat enthalpy CH(4)...

Given that standatrd heat enthalpy `CH_(4), C_(2)H_(4) and C_(3)H_(8)` are -17.9, 12.5, -24.8 Kcal/mol respectively. The `triangleH" for "CH_4, +C_2H_4 to C_3H_8" is"`

A

`-55.2` Kcal

B

`-30.2` Kcal

C

55.2 Kcal

D

`-19.4` Kcal

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The correct Answer is:
D
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ALLEN-THERMODYNAMICS -EXERCISE -3
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  3. Given that standatrd heat enthalpy CH(4), C(2)H(4) and C(3)H(8) are -1...

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  6. The Delta(f)H^(Theta) for CO(2)(g), CO(g), and H(2)O(g) are -393.5, -1...

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

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

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

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  10. Standard enthalpy of formation is zero for

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

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

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

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

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

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

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

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