In which of the following is the entropy change positive?...
In which of the following is the entropy change positive?
Thermal dissociation of ammonium chloride
Reaction between an acid and a base
Addition of concentrated acid to water
Dissolution of sodium metal in water
Correct answer is A
Thermal dissociation of ammonium chloride is an endothermic reaction as heat is absorbed for a positive entropy, with more products than reactants.
Which of the curves above represents the behaviour of 1 mole of an ideal gas? ...
The energy changes accompanying the addition of an electron to a gaseous atom is called? ...
What is the chemical symbol for Sodium? ...
Which of the following results in the fall of acid rain? ...
The following atoms of carbon 126C, 136C and 146C can be described as?...
The derivative of benzene that can be used in making explosives is ...