Question

The value of Kc for the following reaction at 65 °C is 1.11x10³. 2 NO (g) + Cl₂ (g) ⇌ 2 NOCl (g). Given this information, the value of Kp would be:

a. 40
b. 208
c. 3.1 x 10⁴
d. 5.9 x 10³
e. Cannot be determined from information given.

Answer 1

The value of Kp for the given reaction can be calculated using the equation Kp = Kc * (RT)^(delta n).

Step-by-step explanation:

The value of Kp can be calculated using the equation:

Kp = Kc * (RT)^(delta n)

Where:

• Kp is the equilibrium constant in terms of partial pressures
• Kc is the equilibrium constant in terms of concentrations
• R is the gas constant (0.0821 L·atm/(mol·K))
• T is the temperature in Kelvin
• delta n is the change in the number of moles of gas molecules in the balanced chemical equation

In this case, the balanced equation is:

2 NO (g) + Cl₂ (g) ⇌ 2 NOCl (g)

The change in the number of moles of gas molecules is 2 - 1 = 1.

Substituting the values into the equation:

Kp = 1.11 x 10³ * (0.0821 L·atm/(mol·K)) * (65 °C + 273.15 K)^(1)

Kp = 3.1 x 10⁴