A sample of water in equilibrium with its vapor in a closed 1-L container has a...
A sample of water in equilibrium with its vapor in a closed 1-L container has a vapor pressure of 23.8 torr at 25°C. The container's volume is increased to 9 L at constant temperature and the liquid/vapor equilibrium is reestablished. What is the vapor pressure?
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?
If heat is added to ice and liquid water in a closed container and, after the addition of the heat, ice and liquid water remain, a. the vapor pressure of the water will decrease. b. the temperature will increase somewhat. c. the temperature will decrease somewhat. d. the vapor pressure of the water will rise. e. the vapor pressure of the water will remain constant.
A gas sample in a closed, expandable container of intial volume 5 00 L was ailowed to warm from 25 "C to 35 C, at constant moles and pressure. What was its new volume? Select one A. 4380 L A sample of hellum gas at 27.0 "C and 3 60 atm pressure is cooled in the same container to a temperature of -73.0 °C. What is the new pressure? Select one: A. 4.15 atm
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.
The vapor pressure of ethanol (C2H5OH) at 19 ∘C is 40.0 torr. A 1.10 g sample of ethanol is placed in a 2.60 L container at 19 ∘C. If the container is closed and the ethanol is allowed to reach equilibrium with its vapor, how many grams of liquid ethanol remain?Express your answer to two significant figures and include the appropriate units.
Naphthalene undergoes sublimation: C10Hg(s) = C10Hg(9). In a closed container at 800.0 K, the equilibrium vapor pressure is 0.70 torr. What is the value of K? Answer: Check
#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...
In a closed container, one gram of water (1 cm) is boiled under constant pressure of 1 atm (1.013 10Pa) until it changes into steam. The heat of vaporization at this pressure is Lv = 2.256 x 106J/kg = 2256 J/g. Assume that water vapor behaves like an ideal gas. The temperature of the steam is 373 K, number of moles of water vapor n = 0.0546 (g mol), the ideal gas constant R = 82.057 (cm3.atm/g mol-K). (a) How...
The vapor pressure of liquid octane, C8H18, is 40.0 mm Hg at 318 K. A sample of C8H18 is placed in a closed, evacuated container of constant volume at a temperature of 446 K. It is found that all of the C8H18 is in the vapor phase and that the pressure is 60.0 mm Hg. If the temperature in the container is reduced to 318 K, which of the following statements are correct? Choose all that apply. The pressure in...