Question

Does entropy increase, decrease or remain approximately the same in the following processes? In each case, briefly explain your answer.

a) When ammonium nitrate is heated, it undergoes the following decomposition reaction: NH4NO3 (s) ----> N2O(g) + 2 H2O(l)

b) The photosynthetic formation of glucose in plants: 6 H2O(l) + 6 CO2 (g) ----> 6 O2 (g) + C6H12O6 (s) glucose

c) The metabolism of glucose by animals: 6 O2 (g) + C6H12O6 (s) -----> 6 H2O(l) + 6 CO2 (g) glucose

d) The reaction shown in problem 1.

Answer 1

NH4NO3 (s) ----> N2O(g) + 2 H2O(l)

When disorder is increases the entropy is increases.

The decomposition of NH4NO3 disorder is increases in the formation of N2O(g) , H2O(l) . so entropy is increases

entropy increase >>>>answer

b) The photosynthetic formation of glucose in plants: 6 H2O(l) + 6 CO2 (g) ----> 6 O2 (g) + C6H12O6 (s) glucose

The photosynthetic formation of glucose in plants entropy is decreases due to disorder is decreases.

entropy decreases

c.

c) The metabolism of glucose by animals: 6 O2 (g) + C6H12O6 (s) -----> 6 H2O(l) + 6 CO2 (g) glucose

The combustion of glucose disorder is increases . so entropy is increases.

entropy increases >>>>answer