At 80 °C, Kc = 1.87 x 10-3 for the reactionPH3BCl3(s) ⇌ PH3(g) + BCl3(g)(a) Calculate the equilibrium concentrations of PH3 andBCl3 if a solid sample of PH3BCl3 is placed in a closed vesselat 80 °C and decomposes until equilibrium is reached.(b) If the flask has a volume of 0.250 L, what is the minimummass of PH3BCl3(s) that must be added to the flaskto achieve equilibrium?

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