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 lt 0, w=0`
B. `Delta U lt 0, w lt 0`
C. `Delta U gt 0, w=0`
D. `Delta U gt w gt 0`

Answer

A

Explanation

`Zn+H_(2)SO_(4)rarr ZnSO_(4)+H_(2)`. It is an exothermic reaction so `Delta U lt O`. In Bomb calorimeter the process occurs at constant volume so w = 0.