Chemical EquilibriumHard
Question
In a flask, colourless N2O4 is in equilibrium with brown coloured NO2. At equilibrium, when the flask is heated at 100oC the brown colour deepens and on cooling, it becomes less coloured. The change in enthalpy, ΔH, for the system is
Options
A.negative
B.positive
C.zero
D.undefined
Solution
N2O4$\rightleftharpoons$2NO2
On increasing temperature, the reaction will shift forward and hence, ΔH = +ve.
Create a free account to view solution
View Solution FreeMore Chemical Equilibrium Questions
In a system A(s) $\rightleftharpoons$2B(g) + 3C(g), if the concentration of C at equilibrium is increased by a factor of...The equilibrium constant for the reaction N2(g) + O2(g) $\rightleftharpoons$2NO(g) is 0.09 at 3500 K. The fraction of eq...Equilibrium constants are given (in atm) for the following reactions at 0oC:SrCl2 . 6H2O(s) ⇋ SrCl2 . 2H2O (s) + 4...For the reaction CO(g) + H2O(g) ⇋ CO2(g) + H2(g) at a given temperature the equilibrium amount of CO2 (g) can be i...For the reaction X ⇋ 2Y and Z ⇋ P + Q occuring at two different pressure P1 and P2, respectively. The ratio ...