When a mixture of PH3, P2, and H2 comes to equilibrium at 873 K, PP2= 0.422 atm and PH2= 0.832 atm. What is PPH3? Express your answer with the appropriate units.

0.0243 atm

Explanation:

1. Chemical equation

           2PH₃ ⇌ P₂  +   3H₂

E/atm:     x      0.417   0.826

2. Kₚ expression

Step 3. Calculate the equilibrium concentrations

Check:

It checks.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates