Which of the following processes should lead to an increase in entropy of the surroundings? Select...
Which of the following processes should lead to an decrease in entropy of the system? Select as many answers as are correct however points will be deducted for incorrect guesses. Select one or more: Decreasing the temperature Condensation of water (dew) onto grass Increasing the volume of a gas from 11 to 2L Increasing the temperature Decreasing the volume of a gas from 2 L to 1 L Melting of ice into liquid water
Which of the following processes is necessarily driven by an increase in the entropy of the surroundings? the condensation of water the sublimation of dry ice the freezing of water There can be more than one right answer. I keep getting it wrong.
Consider the molecule below: o=s=o: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will be deducted for incorrect guesses. Select one or more: Dispersion forces Dipole/dipole forces Hydrogen bonding Check What amount of thermal energy (in kJ) is required to convert 136 g of ice at -16 °C completely to water vapour at 217 °C? The melting point of water is 0°C and...
Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before" and after they are bumped. We expect the stack of marbles (less random, lower entropy) to be the...
Methanol (CH3OH) is a volatile liquid used widely as a laboratory solvent. Methanol has a standard boiling point of 64.8 °C and its enthalpy of vaporization is 37.6 kJ mol! What is its vapour pressure (in bar) at 52.4 °C? You have 5 attempts at this question. Answer: Check Consider the molecule below: :0=s=0: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will...
O Assignment Score: 40.9% Resources Hint Check Answer Question 22 of 22 > Phase changes are transitions between solid, liquid, and gas phases. For example, ice melting is an example of a phase change from a solid (ice) to a liquid (water). Phase changes involve changes in energy. Which of the statements regarding phase changes are true? Deposition is the conversion of a gas to a solid. Melting is the conversion of a solid to a liquid. Sublimation is the...
Which one of the following processes produces a decrease in the entropy of the system? Which one of the following processes produces a decrease in the entropy of the system? mixing of two gases into one container boiling water to form steaь melting solid lead into liquid lead precipitation of AgCl(s) from Ag+(aq) and Cl−(aq) ions in solution dissolution of MgCl2(s) in water
Label the following processes as exothermic or endothermic: a) ice melting: H20 --> H2O water freezing: H,0 -->H,0 b)_ When CaCl, dissolves in water, the temperature of the water rises. d) When NH NO, dissolves in water, the temperature of the water decreases. If the reaction of 25.0 mL of 1.0 M HBr and 35.0 mL of 1.0 M KOH produces of heat (called q in this experiment), what is the AH of HBTQ) + KOH per mole of water...
Which of the following processes would you expect to produces the greatest increase in the entropy of a pure substance that is heated from absolute zero to a temperature somewhat above its boiling point. heating the liquid melting the solid heating the gas heating the solid vaporizing the liquid
For the following endothermic reaction at equilibrium A(s) + B(aq) ⇌ C(aq) Which of the following conditions will cause the reaction to produce more products? Select as many answers as are appropriate however marks will be deducted for incorrect guesses. Select one or more: Raising the temperature Adding a catalyst Adding more "A" Adding more "C" Lowering the temperature Adding more "B"