Chemical equilibrium 01Chemical equilibrium #Physical and Chemical Changes#Stoichiometry21Choose the best answerWhich of the following is a reversible physical change?ACombustion of methaneBRusting of ironCMelting and freezing of waterDBurning of magnesium Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc22Choose the best answerFor A(g) ⇌ 2B(g), what is the unit of Kc?Amol L⁻¹BL mol⁻¹Cmol² L⁻²DNo unit Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Reaction Quotient23Choose the best answerFor H₂(g) + I₂(g) ⇌ 2HI(g), if [H₂] = 0.2 mol L⁻¹, [I₂] = 0.2 mol L⁻¹, and [HI] = 0.6 mol L⁻¹, what is Qc?A0.44B3C9D48 Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc24Choose the best answerFor 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), which expression represents Kc?A[SO₂]²[O₂] / [SO₃]²B[SO₃]² / [SO₂]²[O₂]C[SO₃] / [SO₂][O₂]D[SO₃]² / [SO₂][O₂] Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc25Choose the best answerFor H₂(g) + I₂(g) ⇌ 2HI(g), Qc = 9 and Kc = 48. In which direction will the reaction proceed?AThe reaction proceeds in the reverse directionBThe reaction proceeds in the forward directionCThe system is already at equilibriumDThe reaction must stop because Qc < Kc Like 0 Discuss 0Share