le châtelier’s principle example 2. nitrosyl chloride, nocl, can be prepared using the reaction:

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2NO (g) + Cl 2(g) Ý 2NOCl (g)

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Le Châtelier’s Principle

Example 2

Nitrosyl chloride, NOCl, can be prepared using the reaction:

Nitrosyl chloride, NOCl, can be prepared using the reaction:

2NO(g) + Cl2(g) Ý 2NOCl(g)

Nitrosyl chloride, NOCl, can be prepared using the reaction:

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

Nitrosyl chloride, NOCl, can be prepared using the reaction:

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use

Nitrosyl chloride, NOCl, can be prepared using the reaction:

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use(high/low) ________ pressure

Nitrosyl chloride, NOCl, can be prepared using the reaction:

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use(high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

Exothermic

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

Exothermic

Heat term is on the right

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

2NO(g) + Cl2(g) Ý 2NOCl(g) + 77.2 kJ

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

Heat term is on the right

2NO(g) + Cl2(g) Ý 2NOCl(g) DH = –77.2 kJ

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

A high [NOCl]

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

A high [NOCl]

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

3 molesof gas

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

3 molesof gas

2 molesof gas

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

3 molesof gas

2 molesof gas

If pressure is increased, the equilibrium will shift to the side with fewer moles of gas.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

3 molesof gas

2 molesof gas

If pressure is increased, the equilibrium will shift to the side with fewer moles of gas.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

3 molesof gas

2 molesof gas

If pressure is increased, the equilibrium will shift to the RIGHT.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

If pressure is increased, the equilibrium will shift to the RIGHT.

to produce a high yield of NOCl

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

If pressure is increased, the equilibrium will shift to the RIGHT.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use (high/low) ________ pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

If pressure is increased, the equilibrium will shift to the RIGHT.

In order to achieve the maximum yield possible one should use HIGH PRESSURE.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

In order to achieve the maximum yield possible one should use HIGH PRESSURE.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

Should we use high or low temperature?

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

Should we use high or low temperature?

to produce a high yield of NOCl

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

According to Le Châtelier’s principle, a decrease in temperature will cause the equilibrium to shift toward the heat term.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

We are removing heat, so this reaction counteracts this stress by shifting toward the right, producing more heat.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

Using a low temperature

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

Using a low temperature will cause this equilibrium to shift to the right,

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and (high/low)_______ temperature.

We want the equilibrium to shift RIGHT

Using a low temperature will cause this equilibrium to shift to the right, producing a higher yield of the product NOCl.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

We want the equilibrium to shift RIGHT

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

PE

Reaction Proceeds

Reactants

Products

Activation Energy

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

PE

Reaction Proceeds

Reactants

Products

Activation EnergyIf the temperature is too low, the rate of the reaction will be very slow.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

A low temperature will produce a high yield of product,

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

A low temperature will produce a high yield of product, but if it’s too low,

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

A low temperature will produce a high yield of product, but if it’s too low, the rate of the reaction will be too slow to be practical.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

In an industrial process using this reaction, a low temperature would be used, but still high enough to maintain a reasonable reaction rate.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heat

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

In order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

The temperature should be high enough to maintain a reasonable reaction rate.

2NO(g) + Cl2(g) Ý 2NOCl(g) + heatIn order to obtain the highest possible yield of NOCl, one should use HIGH pressure and LOW temperature.

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