Question

According to Le Chatelier's principle,

an increase in pressure always causes a
changing in position of equilibrium for
any reaction
the yield of NH3 decreases from its
constituents at lower temperature
an increase in temperature causes a
decrease in the value of Kc for an
exothermic reaction
the K is decreased for the reaction
if the
concentration of A is increased​

Answer 1

The effect of increasing temperature When the temperature is increased, the position of equilibrium moves in the endothermic direction to reduce the temperature. ... This means that as the temperature is increased, the position of equilibrium moves to the left, and the yield of ammonia decreases.