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

Options

A. `Delta U lt0, w=0`
B. `Delta U lt 0, w lt0`
C. `Delta U gt0, w=0`
D. `Delta U gt0, w gt0`

Answer

A

Explanation

Bomb calorimeter is commonly used to find that heat of combustion of organic substances which consists of a sealed combustion chamber, called a bomb. If a process is run in sealed container then no expansion or compression is allowed, so `w=0 and Delta U=q.`
`Delta U lt 0, w=0`.