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Which of the following statements is/a...

Which of the following statements is/are ture ?

A

`DeltaU=0` for combaustion of `CH_(4)(g)` is a sealed rigid adiabatic container

B

`DeltaH_(f)` for s(mmonoclinci) is non -zero

C

If heat of atomisation of `CH_(4)(g)` is 360 kcal/mole and C-C bond energy is 0 Kcal /mole then heat of atomication of`C_(2)H_(6)` is ` 600 kcal//"mole"`

D

Work done may be zero in cyclic process

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The correct Answer is:
a,b,c,d
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