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Which of the following is (are) endother...

Which of the following is (are) endothermicn reaction:

A

Combustion of methane

B

Decomposition of water

C

Dehydrogenation of ethane to ethylene

D

Conversion of graphite to diamond

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Because they proceeds by absorption of heat.
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Knowledge Check

  • Which of the following reactions are endothermic reactions ?

    A
    Combustion of methane
    B
    Decomposition of water
    C
    Dehydrogenation of ethaneto ethene
    D
    Conversion of graphite to diamond

  • Which of the following is an exothermic reaction?

    A
    `N_(2(g))+O_(2(g))+180.8 kJ rarr 2NO_((g))`
    B
    `N_(2(g))+3H_(2(g))-92kJ rarr 2NH_(3(g))`
    C
    `C_("(graphite)")+H_(2)O_((g)) rarr CO_((g))+H_(2(g))-131.3 kJ`
    D
    `C_("(graphite)")+2S_((s)) rarr CS_(2(l))-91.9 kJ`

  • Which of the following is an exothermic reaction?

    A
    `H_(2(g))+Cl_(2(g)) rarr 2HCl_((g)), DeltaH=-184.6 kJ`
    B
    `N_(2(g))+O_(2(g)) rarr 2NO_((g)), DeltaH=+180.8 kJ`
    C
    `C_("(graphite)")+H_(2)O_((g)) rarr CO_(2)+H_(2(g))-131.4 kJ`
    D
    `C_("(graphite)")+2S_((g))+91.9 kJ rarr CS_(2(l))`

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    Which of the following is a decomposition reaction ?

    Which of the following is a decomposition reaction ?

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