Chemistry

posted by .

For which reaction is delta Ssys > 0?

A) CH4(g) + 2 O2(g) ¨ CO2(g) + 2 H2O(l)

B) NH3(g) + HCl(g) ¨ NH4Cl(s)

C) 2 NH4NO3(s) ¨ 2 N2(g) + O2(g) + 4 H2O(g)

D) HCl(aq) + NaOH(aq) ¨ NaCl(aq) + H2O(l)

  • Chemistry -

    dS is + (i.e., >0) when S products is greater than S for reactants.
    A has 3 mols gas on the left and 1 on the right; therefore, dS decreases.
    Remember S increases from solids to liquids to gases. Therefore, A and B can't be right.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l) NH4Cl(aq) + +NaOH(aq) -> NH3(aq) + NaCl(aq) + H2O(l) NH3(aq) + HCl(aq) -> NH4Cl(aq) Write net ionic equations for the three reactions. Show how the first two reactions are arranged algebraically …
  2. chemistry

    Calculate the equilibrium constant at 25 C for CH4 + 2 H2O --> CO2 + 4H2 given: delta G for CH4 = -50.81 H2O = -228.6 CO2 = -394.4 H2 = 0
  3. Chemistry

    Which of these is best described as an acid-base reaction?
  4. Chemistry

    Which of these is best described as an acid-base reaction?
  5. Chemistry

    Which of these is best described as an acid-base reaction?
  6. Chemistry

    Which of the following reactions are spontaneous (favorable)?
  7. chemistry

    Balance each of the following equations a)CH4+CL2......>CCl4+HCl b)AL(OH)3+H2SO4.....>Al2(SO4)3+H2O c)Fe+H2O......>fe3O4+H2 d)Al4C3+HCl......>AlCl3+CH4 e)C2H6+O2......>CO2+H2O f)P2H4.......>PH3+P4 g)S2Cl2+NH3......>N4S4+NH4CL+S8 …
  8. CHEMISTRY

    . For which reaction is ƒ´Ssys ƒ® 0? A) CH4(g) + 2 O2(g) ¡÷ CO2(g) + 2 H2O(l) B) NH3(g) + HCl(g) ¡÷ NH4Cl(s) C) 2 NH4NO3(s) ¡÷ 2 N2(g) + O2(g) + 4 H2O(g) D) HCl(aq) + NaOH(aq) ¡÷ NaCl(aq) + H2O(l)
  9. CHEM

    Can you please check my work? I got -4.3KJ/mol If this is not right can you tell me what I am doing wrong?
  10. chemistry

    Which of the following chemical reactions represents a neutralization reaction?

More Similar Questions