Phosphorous and chlorine gases combine to produce phosphorous trichloride: p2(g) + 3cl2(g) ⇌ 2pcl3(g)δg° at 298 k for this reaction is −642.9 kj. the value of δg at 298 k for a reaction mixture that consists of 1.500 atm p2, 1.600 atm cl2 and 0.650 atm pcl3 is

ΔG = -649,5 kJ

Explanation:

It is possible to answer this question using:

ΔG = ΔG° + RT lnQ

For the reaction:

P₂(g) + 3Cl₂(g) ⇌ 2PCl₃(g)

ΔG° = -642,9 kJ at 298K

R is gas constant (8,314x10⁻³ kJ/molK)

And Q is reaction quotient, for the present reaction

, where [P₂] = 1,500atm ;Cl₂ = 1,600atm; [PCl₃] = 0,650 atm

Replacing:

ΔG = -649,5 kJ

I hope it helps!

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: