ThermodynamicsHard
Question
For the reaction of the one mole of zinc dust with one mole of sulphuric acid in a bombcalorimeter, ᐃU and w corresponds to
Options
A.ᐃU < 0, w = 0
B.ᐃU < 0, w < 0
C.ᐃU > 0, w = 0
D.ᐃU > 0, w > 0
Solution
Zn + H2SO4 = ZnSO4 + H2
In bomb calorimeter, there is no expansion in volume, so work done will be zero. Thisreaction is exothermic. So some heat will be evornal energy. Hence, ᐃU < 0 & w = 0
In bomb calorimeter, there is no expansion in volume, so work done will be zero. Thisreaction is exothermic. So some heat will be evornal energy. Hence, ᐃU < 0 & w = 0
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