In the reaction ${A_2}_{(g)} + 4{B_2}_{(g)} \rightleftharpoons 2A{B_4}_{(g)}$ where $\Delta H < 0$,the formation of $AB_{4(g)}$ will be favoured by:

According to Le Chatelier's principle,an increase in the temperature of the following reaction will:
$N_2 + O_2 \rightleftharpoons 2NO - 43,200 \ kcal$

Le Chatelier's principle is applicable only to a

What are the requirements for chemical synthesis,and how do changes in conditions affect equilibrium and the laws governing it?

$A$ vapor at atmospheric pressure is gradually heated from $25\,^oC$. Initially,its color deepens,but above $160\,^oC$,the color fades. At $600\,^oC$,the vapor becomes almost colorless. However,increasing the pressure at this temperature makes the color deep again. What is this vapor?

Consider the equilibrium ${N_2}_{(g)} + 3{H_2}_{(g)} \rightleftharpoons 2N{H_3}_{(g)}$,$\Delta H = -93.6 \ kJ$. The maximum yield of ammonia is obtained by: