(A) is correct statement regarding equilibrium condition given.
Equilibrium state is the state at which the rate of forward and backward reactions are exactly equal.
Which means at equilibrium the number of reactant molecules that can disappear in the forward reaction must exactly equal to the number of reactant molecules that can form in the back ward reaction at same rate.
So, (A) is correct for the given equilibrium.
Answer and reason please! 7. When a liquid is in dynamic equilibrium with its vapor in...
A liquid placed in a closed container will evaporate until equilibrium is reached. At equilibrium, which of the following statements is false? A. The partial pressure exerted by the vapor molecules is called the vapor pressure of the liquid. B. Liquid molecules are still evaporating. C. The number of vapor molecules remains essentially constant. D. The partial pressure of the vapor is constant. E. The boundary (meniscus) between liquid and vapor disappears.
Consider a situation in which a flask is half-filled with liquid water at room temperature. The partially filled flask is then sealed and given time to reach equilibrium. Which of the following statements are true? [Select all that apply.] After the flask reaches equilibrium, there will no longer be any movement of individual water molecules from the gas phase into the liquid phase. The rate of condensation decreases as the flask approaches equilibrium. The rate of condensation increases as the...
Chemistry 121, Spring 2018 Worksheet (Ch 13) /10 points Name: Which phase change corresponds to fusion? a] liquid to gas b] solid to liquid 1. [e] solid to gas Id] gas to liquid 2. In a system at equilibrium between the liquid and gas phases the rate at which particles change from gas to liquicd a] exceeds the rate at which they change from liquid to gas lb] exceeds the rate at which they change from gas to liquid [c]...
#1--The vapor pressure of liquid pentane, C5H12, is 100. mm Hg at 260 K. A 0.221 g sample of liquid C5H12 is placed in a closed, evacuated380. mL container at a temperature of 260 K. Assuming that the temperature remains constant, will all of the liquid evaporate? _____yes/no What will the pressure in the container be when equilibrium is reached? ______mm Hg #2-- The vapor pressure of liquid ethane thiol, C2H5SH, is 100. mm Hg at 260 K. A sample...
Liquid water in a closed container at 25 degrees C is in equilibrium with water vapor at a pressure of 0.0313 atmospheres. Consider a puddle on a sidewalk at 25 degrees C. If the relative humidity is 38% (i.e., the H2O(g) partial pressure is 0.012 atmospheres) what is the free energy change for evaporation of water from the puddle?
help please The vapor pressure of liquid propanol, C3H7OH, is 40.0 mm Hg at 309 K. A sample of C3H7OH is placed in a closed, evacuated container of constant volume at a temperature of 432 K. It is found that all of the C3H7OH is in the vapor phase and that the pressure is 48.0 mm Hg. If the temperature in the container is reduced to 309 K, which of the following statements are correct? Choose all that apply. The...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...
34) Which of the followine represent STP Standard Temperature and Pressure) conditions A) TOK and Plam BT-0"C and P760 atm CT-273 K and P-0 atm D) T-273 K and P lam ETIK and Patm 25) 23) Which of the following is TRUE for a liquid that is placed in a sealed container? A) Condensation of the evaporated molecules in the car can only occur once all of the liquid molecules are in the vapor for gaseous) state. B) A set...
When water changes from the liquid phase to the gaseous (vapor) phase, energy is required for the H2O molecules to escape their mutual molecular attraction (the internal energy change ufg in the steam tables) and for the volume expansion (P·vfg). The total heat of vaporization for the phase change is represented by the enthalpy change hfg in the steam tables. Use the steam tables to calculate the fractions of energy for the volume expansion and for the molecules to escape...
24) Which of the following represent STP (Standard Temperature and Pressure) conditions? A) T -0 K and P = 1 atm B) T=0°C and P 760 atm C) T= 273 K and P = 0 atm D) T-273 K and P-1 atm E) T = 1 K and P = 1 atm 25) Which of the following is TRUE for a liquid that is placed in a sealed container? A) Condensation of the evaporated molecules in the jar can only...