Which of the following reactions have a positive deltaSrxn? check all that apply 2A(g)+ 2B(g) ------>5C(g)...

Question

Question

Which of the following reactions have a positive deltaSrxn? check all that apply

2A(g)+ 2B(g) ------>5C(g)

2A(g) +2B(g)------->3C(g)

2A(g) +B(s)--------->3C(g)

A(g) +2B(g)----------> 2C(g)

science chemistry

Answer 1

Answer #1

If number of moles of gaseous product formed(Np) is more than number of moles of gaseous reactant(Nr),then ∆Srxn is positive.

If Np<Nr ,then ∆Srxn is negative.

@ 2A (9) + 2B(9) —> 50(9) Np = 5 mol No z 4 mol Since, No> Ny usando ( positive) 6) 2009) + 20(9) ► 30(9) No= 3mol, No= a ma

Answer 2

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