What is the reaction quotient, q, for this system when [n2] = 2.00 m, [h2] = 2.00 m, and [nh3] = 1.00 m at 472°c?

the first answer is 0.0625

the second one is Q < Keq

Answer : The value of reaction quotient, Q is 0.0625.

Solution : Given,

Concentration of = 2.00 M

Concentration of = 2.00 M

Concentration of = 1.00 M

Reaction quotient : It is defined as a concentration of a chemical species involved in the chemical reaction.

The balanced equilibrium reaction is,

The expression of reaction quotient for this reaction is,

Now put all the given values in this expression, we get

Therefore, the value of reaction quotient, Q is 0.0625.

6.4 cm (max) - 25 cm (min)

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.