When the external pressure is less than the atmospheric pressure, water will boil below its normal boiling point A True B) False

Q: sample of CCl4 is analyzed in the laboratory and is found to have a normal boiling point of 77.0 ⁰C.…

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Q: Water boils when: Select one: O a. At any temperature, when its vapor pressure = external pressure O…

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Q: The normal boiling point of water is 100 °C and vapor pressure at 25 °C is 23.8 mmHg. As every 1 km…

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Q: kJ The enthalpy of vaporization of Substance X is 26.0 and its normal boiling point is – 148. °C.…

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Q: When the external pressure is less than the atmospheric pressure, water will boil below its normal…

A: Water boils when vapour pressure become equal to atmospheric pressure.

Q: Hex-1-ene has a vapor pressure of 196.764 mmHg at 26.36 ∘C and 609.619 mmHg at 56.74 ∘C. What is…

A: If the vapor pressure of a liquid at a particular temperature is known then with the assistance of…

Q: Using this graph of CS2 data, determine (a) the approximate vapor pressure of CS2 at 30 °C, (b) the…

A: Vapor pressure is defined as the pressure exerted by…

Q: This gra V ows how the vapor pressure of three liquids varies with temperature: 900- 800 700 600…

A: Given: A graph:

Q: Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.…

A: Convert the values of temperatures T1 and T2 into Kelvin units by using the above relation.

Q: A liquid will boil at a temperature when its vapor pressure is _______ atmospheric pressure?

A: The temperature at which the vapor pressure is equal to the atmospheric pressure is termed as…

Q: (d) Describe what happens when you start at point A and increase the temperature at constant…

A: When the temperature of the system is increased by keeping the pressure of the system constant,…

Q: Which is the following statements concerning the boiling point of a liquid is always true? A)The…

A: Boiling point can be defined as the temperature at which a liquid substance start converting into…

Q: 2. What is the relationship between vapor pressure and boiling point?

A: Vapor pressure is the pressure experted by the vapor with solid or liquid phase. The vapor pressure…

Q: Which of the following statements is( are) true? a. LiF will have a higher vapor pressure at 25°C…

A: Question is based on the concept of chemical bonding. we have to identify the correct statement.

Q: What are the methods for determining the degree of melting

A: The melting point of any substance is defined as it is the particular temperature at which the…

Q: The pressure above a pure sample of solid Substance X at - 184. °C is raised. At what pressure will…

A: The given temperature is (-184 + 273.15)K = 89.15 K

Q: 1. Non-volatile impurities usually decrease the boiling point of the liquid due to a decrease in the…

A: Since you have posted multiple questions, I will be answering only the first one as per the…

Q: What is the importance about water having a high heat of vaporization? O A. a large amount of heat…

A: Given: To identify the importance of water having a high heat of vaporization.

Q: Ether has a higher vapor pressure than water. Which of these two liquids has stronger intermolecular…

A: Vapor pressure is the pressure that is exerted when the molecules leave the surface at the same rate…

Q: Some chemistry students are trying to identify an unknown substance. They obtain the heating curve…

A: Heat versus temperature graph shows all states of any substance with all temperatures.

Q: True or false london dispersion forces decrease as the number of electrons increases?

A: London dispersion force is directly proportional to the number of electron

Q: what is heat of vaporization of an unknown liquid if it takes 280.0 kj of hear to completely…

A: The amount of heat required for the vaporization of the unknown liquid is = 280.0 kJ The amount of…

Q: Between ethanol and water which has a highr normal boiling point?

A: Ethanol which is also known as ethyl alcohol, organic compound with chemical formula of C2H5OH , is…

Q: following standard boiling points are given (at 1 atm): (a) water, 100°C…

A: Answer is d) diethyl ether CH3-CH2-OCH2-CH3

Q: At 50. °C the vapor pressure of the following substances is presented below: Substance Vapor…

A: To find: The increasing order of evaporation, boiling point and intermolecular forces. The vapor…

Q: Refer to the plots of vapor pressure of different substances as a function of temperature. A.…

A: Here we have to compare boiling point of water and ethanol and reason behind that.

Q: The following information is given for antimony, Sb , at 1 atm: Boiling point = 1440.0°C   Heat of…

A: SOLUTION Mass of liquid antimony = 44.9 g Heat of fusion = 38.5 cal/g Energy removed = 38.5…

Q: The pressure above a pure sample of solid Substance X at -72. °C is raised. At what pressure will…

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Q: Boiling points depend strongly on the ambient pressure. Melting points do not. Explain the…

A: Boiling point is strongly depend on pressure.

Q: barometric pressure when measuring the boiling point of water is 773.24 mm on a Hg column. Hint: An…

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Q: At what range of pressure will water be a liquid at temperatures above its normal boiling point?

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Q: what quantity of heat would be required to vaporize 2.30g of aluminum at its normal boiling point?

A: the answer is follows as :

Q: The enthalpy of vaporization of Substance X is 20.0 mol and its normal boiling point is 60. °C.…

A: The question is based on the concept of phase transition. we have to calculate vapour pressure of…

Q: At a pressure of 1 atm, kJ of heat are needed to vaporize a 38.7 g sample of liquid benzene at its…

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Q: The pressure above a pure sample of solid Substance X at –137. °C is raised. At what pressure will…

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Q: The vapor pressure of methanol at 20.0 oC is 97.7 torr. The normal boiling point of methanol is 64.7…

A: Given data,T1(Temperature of methanol)=20.0oC=20.0+273.15=293.15KP1(pressure of methol)=97.7 torrT2(…

Q: The boiling points of liquids are pressure dependent, and boiling points are always reported as…

A: In the given question we have asked that whether the give statement is true or false and the…

Q: Calculate the normal boiling point of the liquid in units of °C.

A:

Q: The pressure above a pure sample of solid Substance X at –184. °C is raised. At what pressure will…

A: The graph given is  Given : temperature = -184 oC  => temperature in K = T in oC + 273 = 273 -…

Q: True or false: the heat of vaporization depends to a small extent on the surrounding temperature.

A: False  The heat of vaporization  is defined as the amount of heat needed to turn 1 g of a liquid…

Q: At elevations high above the sea level, liquids boil at temperatures lower than their normal boiling…

A: Liquids boil at temperature lower than their normal boiling point at high altitude. Boiling point is…

Q: Which statement below would be accurate about boiling water?

A: In boiling liquid state of water convert into gaseous state . In liquid state there is greater…

Q: Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.…

A: Clausius-Clapeyron equation signifies the relationship between heat of vaporisation and pressure at…

Q: 1. Rank the following liquids in order of increasing boiling points, from lowest to highest: He /…

A: Boiling point of the liquid depends upon the inter-molecular force of attraction present in it. More…

Q: Why are the boiling points different and what is the trend?

A: Boiling point is defined as the temperature at which a solid starts melting and becomes liquid.   it…

Q: At 50. ° C the vapor pressure of the following substances is presented below: Substance Vapor…

A: Vapor pressure: When a liquid is placed in sealed container, the vapor molecules above its surface…

Q: kJ and its normal boiling point is -103. °C. Calculate the vapor pressure of X at -137. °C. The…

A: The Clausius-Clapeyron equation is as follows,                       ln P=-∆HvapR1T+C  Given:…

Q: For propanol to boil at a higher temperature than the normal boiling point, the pressure must be a)…

A: Normal boiling point : The boiling point of a liquid is a temperature at which thier equilibrium…

Q: Use the vapor-pressure curve in Figure 11.22 to estimate the external pressure under which ethyl…

A: We would use the given curve to answer these questions.