12:36Phase diagrams | States of matter and intermolecular forces | Chemistry | Khan AcademyKhan Academy760views
04:51Phase Changes, Heats of Fusion and Vaporization, and Phase DiagramsProfessor Dave Explains489views1rank
10:28Phase Diagrams of Water & CO2 Explained - Chemistry - Melting, Boiling & Critical PointThe Organic Chemistry Tutor567views
Multiple ChoiceAt what temperature can we no longer tell the difference between the liquid and gas phases?761views8rank
Multiple ChoiceThe ability for liquids to mix without separating into two phases is called _________.303views
Multiple ChoiceConsider adding enough heat to a solid sample of a substance below its melting point to change the sample to the gas above its boiling point. Which of the following would involve no change in temperature of the sample as the described transition occurs?300views
Multiple ChoiceCalculate the amount of heat (in J) required to heat 2.00 grams of ice from −12.0℃ to 88.0℃. The heat of fusion of water is 6.02 kJ/mol, the specific heat capacity of ice is 2.09 J/g ▪℃ and the specific heat capacity of water is 4.184 J/g ▪℃.327views
Multiple ChoiceConsider the phase diagram below: What changes would the sample undergo as the sample moves from the temperature and pressure at point 'a' to the temperature and pressure at point 'b'?782views1rank
Open QuestionBased on the phase diagram shown below, how will the melting point of the substance change if the pressure is increased above 1 atm?337views
Open QuestionIn the phase diagram for water, indicate the direction that the solid–liquid and liquid–gas coexistence lines will move along the temperature axis after the addition of solute.394views
Open QuestionA gaseous substance turns directly into a solid. Which term describes this change?236views
Open QuestionWhich term describes the process by which water vapor changes to the liquid state?252views
Open QuestionStarting from the lower triple point, what action(s) would produce liquid carbon?186views
Open QuestionStarting from the lower triple point, what action(s) would produce liquid carbon?241views
Open QuestionWhat does water undergo when it turns to gas from liquid on surface of a sidewalk?243views
Open QuestionSubstance A melts at 350 °C, substance B melts at 580 K, and substance C melts at 650 °F. What is the correct order of the melting point temperatures of A, B, and C from lowest to highest?1views
Open QuestionIn each of the following regions of a generic phase diagram is it possible for the liquid to be the most stable phase?a. pressures greater than the critical pressureb. temperatures greater than the critical temperaturec. pressures less than the pressure of the triple pointd. temperatures less than the temperature of the triple point1views
Open Questiona. Of the three conventional states of matter—solid, liquid and gas—which two have the most similar densities?b. In a typical phase diagram, which boundary is the least affected by changes in pressure, the vapor pressure curve, the melting curve, or the sublimation curve?c. Is there a correlation between your answers to parts (a) and (b)?1views