Multiple ChoiceWhich of the following reactions would result in a decrease in entropy (i.e., ΔS<0) under standard conditions?
Multiple ChoiceAn ideal gas is allowed to expand at constant temperature. What are the signs of ∆H, ∆S & ∆G.2041views2rank7comments
Multiple ChoiceConsider the freezing of liquid water at 30°C. For this process what are the signs for ∆H, ∆S, and ∆G?2453views1rank4comments
Multiple ChoicePredict the sign of ∆S in the system for each of the following processes:a) Ag+ (aq) + Br - (aq) → AgBr (s)b) CI2 (g) → 2 CI - (g)c) CaCO3 (s) → CaO (s) + CO2 (g)d) Pb (s) at 50°C → Pb (s) at 70°C2831views4rank3comments
Multiple ChoiceFor each of the following reactions state the signs of ∆H (enthalpy) and ∆S (entropy):a) Fusion of ice.b) Sublimation of CO2c) Vaporization of aqueous water.d) Deposition of chlorine gas.e) Condensation of water vapor. 2355views2rank3comments