Question

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

(a) ΔU < 0,w =0

(b) ΔU <0, w <0

(c) ΔU > 0, w =0

(d) ΔU > 0, w > 0

Answer 1

Correct option  (a) ΔU < 0,w =0

Explanation:

Bomb calorimeter is commonly used to find the heat of combustion of organic substances which consists of a sealed combustion chamber, called a bomb. If a process is run in a sealed container then no expansion or compression is