How will an increase in temperature affect each of the following equilibria? how will a decrease in the volume of the reaction vessel affect each?
(a) 2nh3(g) ⇌ n2(g)+3h2(g) δh = 92kj

(b) n2(g) + o2(g) ⇌ 2no(g) δh =181kj

(c) 2o3(g) ⇌ 3o2(g) δh = − 285kj

(d) cao(s) + co2(g) ⇌ caco3(s) δh = − 176kj

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.  This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

In exothermic reaction , heat is released during a chemical reaction. This means that temperature is decreased on the reactant side.

In endothermic reaction , heat is absorbed during a chemical reaction. This means that temperature is increased on the reactant side.

Increase the volume

If the volume of the container is decreased , the pressure will increase according to Boyle's Law. Now, according to the Le-Chatlier's principle, the equilibrium will shift in the direction where decrease in pressure is taking place. So the equilibrium will shift in direction where gaseous moles are less.

(a)

ΔH = 92kJ  Endothermic reaction

Equilibrium will shift in right that is the forward direction.

On decrease in volume:

Equilibrium will shift in left that is the backward direction.

(b)

ΔH =181kJ  Endothermic reaction

Equilibrium will shift in right that is the forward direction.

On decrease in volume:

Equilibrium will shift in right that is the forward direction.

(c)

ΔH = − 285kJ  Exothermic reaction

Equilibrium will shift in right that is the forward direction.

On decrease in volume:

Equilibrium will shift in left that is the backward direction.

(d)

ΔH = − 176kJ Exothermic reaction

Equilibrium will shift in right that is the forward direction.

On decrease in volume:

Equilibrium will shift in right that is the forward direction.

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

i dont know the answe