Chemistry Past Questions and Answers

The mass of silver deposited when a current of 10a is passed through a solution of silver salt for 4830s is
[Ag = 108, F = 96500 c mol^-1]

2CO_(g) + O_2(g) → 2CO_2(g)
Given that ΔH[CO]is -110.4 kJmol^-1 and ΔH[CO₂] is -393.0 kJmol^-1, the energy change for the reaction above is

Which of the following hydrogen halides the highest entropy value?

N₂O_4(g) ↔ 2NO_2(g)
In the endothermic reaction above, more product formation will be favoured by

Which of the following shows little or no net reaction when the volume of the system is decreased?