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Which of the following equations respres...

Which of the following equations respresents standard heat of formation of `CH_(4)` ?

A

`C_(("diamond"))+2H_(2(g))rarr CH_(4(g))`

B

`(C_(("graphite"))+2H_(2(g))rarr CH_(4(g))`

C

`(C_(("diamond"))+4H_((g))rarr CH_(4(g))`

D

`C_(("graphite"))+4H_((g))rarr CH_(4(g))`

Text Solution

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The correct Answer is:
B
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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. At 300K , the standard enthalpies of formation of C(6)H(5)COOH((s),CO(...

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  2. Enthalpy of a compound is equal to its :- (When it is formed from cons...

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  3. Which of the following equations respresents standard heat of formatio...

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  4. The enthalpy of formation of ammonia is -46.0 KJ mol^(-1) . The entha...

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  5. Given the enthalpy of formation of CO(2)(g) is -94.0 KJ, of CaO(s) is ...

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  6. Given that standard heat enthalpy of CH(4), C(2)H(4) and C(3)H(8) are...

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  7. The standard molar heats of formation of ethane, carbon dioxide, and l...

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  8. Teo atoms of hydrogen combine to form a molecule of hydrogen gas, the ...

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  9. Delta(f)^(@) for CO(2(g)), CO((g)) and H(2)O((g)) are -393.5,-110.5 an...

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  10. The enthalpies of combustion of carbon and carbon monoxide are -393.5 ...

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  11. Calculate the standard heat of formation of carbon disulphide (l). Giv...

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

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  13. Standard enthalpy of formation is zero for.

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  14. The standard heats of formation of NO(2)(g) and N(2)O(4)(g) are 0.8 an...

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

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  17. 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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  18. Given standard enthalpy of formation of CO(-110 "KJ mol"^(-1)) and CO(...

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  19. The enthalpy of formation for C(2)H(4)(g),CO(2)(g) and H(2)O(l) at 25^...

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

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