1.

Assertion. The heat of combustion found by using bomb calorimeter gives the value of internal energy change DeltaU and not enthalpy change DeltaH. Reason.In a closed vessl,DeltaU = DeltaHonly ifpressure inside the calorimeter remains constant.

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If both A and R are TRUE,andR is the TRUEEXPLANATION of A.
If both A and R are true,but R is not the true EXPLANATION of A.
If A is true, but R is false
If both A and R are false.

Answer :a


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