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Heat of combustion of CH4, C2H4, C2H6 ar...

Heat of combustion of `CH_4, C_2H_4, C_2H_6` are-890, -1411 and -1560 kJ/mol respectively. Which has the lowest calorific fuel value in kJ/g:

A

`CH_4`

B

`C_2H_4`

C

`C_2H_6`

D

All same

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The heat of combustion for C ,H_2 and CH_4 are-349.0, -241.8 and -906.7 kJ respectively.The heat of formation CH_4 is:

    A
    174.1 kJ
    B
    274 kJ
    C
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    D
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  • Standard heat of formation of CH_4(g), CO_2(g) and water at 25^@C are -17.9, -94.1 K and -68.3 kcal mol^-1 respectively. Calculate the heat change (in kcal) in the following reaction at 25^@C: CH_4(g)+2O_2(g)=CO_2(g)+2H_2O(g)

    A
    `-144.5`
    B
    `-180.3`
    C
    `-248.6`
    D
    `-212.8`

  • The heat of formation of CO(g) and CO 2 ​ (g) are ΔH=−110 and ΔH=−393kJmmol −1 respectively. What is the heat of reaction(ΔH) (in kJ mol −1 ) for the following reaction? CO(g)+ 1/2 ​ O 2 ​ (g)→CO 2 ​ (g)

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    C
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    D
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