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Which of the following equation represen...

Which of the following equation represents standard heat of formation of ethanol?

A

`CH_(3)CHO_((l)) + (1)/(2)H_(2(g)) overset(Ni)rarr C_(2)H_(5)OH_((l))`

B

`2C_("graphite") + 3H_(2(g)) + (1)/(2) O_(2(g)) rarr C_(2)H_(5)OH_((g))`

C

`2C_("diamond") + 3h_(2(g)) + (1)/(2) O_(2(g)) rarr C_(2)H_(5)OH_((g))`

D

`2C_("graphite") + 3H_(2(g)) + (1)/(2) O_(2(g)) rarr C_(2)H_(5)OH_((l))`

Text Solution

Verified by Experts

The correct Answer is:
D
Heat of formation is from elements in standard state
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-PRACTICE SHEET (EXERCISE- II) (LEVEL- I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. For the transition C(("diamonid")) rarr C(("graphite")) , Delta H = -1...

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  3. Which of the following equation represents standard heat of formation ...

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  4. Which of the following is not a combustion reaction

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  5. The chemical process involved in the combustion reactions is

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  6. MgSO(4(s)) + H(2)O rarr MgSO(4(aq)), Delta H = - 84K. Cals, Delta H of...

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  7. The heat change for the following reaction C((s)) + 2S((s)) rarr CS(2(...

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  8. N(2) + 3H(2) rarr 2NH(3), Delta H = - 46K. Cals. From the above reacti...

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  9. The enthalpies of HCl, NaOH ,NaCl and H(2)O are -120, -82, -148 and -6...

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  10. How much energy is released when 6 mole of octane is burnt in air? Giv...

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  11. What is theheat of formation of C(6)H(6), given that the heats of comb...

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  12. Heat of combustion of C(2)H(4) is -337 kCal. If 5.6 lit O(2) is used a...

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  13. For the following reaction H((aq))^(+) + OH((aq))^(-) rarr H(2)O((l)) ...

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  14. For the reaction 2H(2)O((l)) rarr H(3)O((aq))^(+) + OH((aq))^(-), the ...

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  15. The heat of neutralisation is maximum when

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  16. Assertion (A): Heat of neutralization of HClO(4) with NaOH is same as ...

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  17. In which of the following combinatins of HCL and NaOH, the heat energy...

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  18. The correct match is

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  19. Heat of neutralisation for the reaction NaOH + HCl rarr NaCl + H(2)O "...

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  20. Under the same conditions how many mL of 1M KOH and 0.5M H(2)SO(4) sol...

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