1.

For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, DeltaU and w correspond to

Answer»

`DeltaU lt 0, w=0`
`DeltaU=0, wlt0`
`DeltaUgt0, w=0`
`DeltaUlt0, wgt0`

Solution :Bomb calorimeter is commonly used to find the heat of combustion of ORGANIC substances which consists of a scaled combustion chamber, called a bomb. If a process is RUN in a sealed container then no expansion or COMPRESSION is allowed, so w = 0 and `DeltaU = q`.
`DeltaUlt0, w=0`


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