An oxide of the element contains 20% O2 by weight. Calculate the equivalent weight of the element.
8
16
32
12
In which of the following process, maximum increase in entropy is observed?
Melting of ice
Sublimation of napthalene
Condenstaion of water
Dissolution of salt in water
B.
Sublimation of napthalene
The order of entropy in solid, liquid and gas is gas > liquid > solid.
Hence, in sublimation of napthalene, maximum increase in entropy is observed.
Considering the reaction C (s) + O2 (g) → CO2 (g) + 393.5 kJ the signs of H, S and G respectively are
+, -, -
-, +, +
-, -, -
-, +, -