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Earn 100

The enthalpy of combustion of methane at is . The heat liberated when of methane is burnt in air is
(a)445 kJ
(b)278 kJ
(c)-890 kJ
(d)178 kJ

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Important Questions on Thermodynamics
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,
the amount of heat produced as measured in bomb calorimeter, is at . Assuming ideality the Enthalpy of combustion, , for the reaction will be:

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at
Hence, is:

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The standard enthalpies of formation of and glucose (s) at are , and , respectively. The standard enthalpy combustion per gram of glucose at is
( for Glucose)

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(Given at
)

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Based on the above thermochemical equations, the value of at for the reaction
will be:

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