Assume that the temperature of the breath of a human being is 35 ° C and its relative humidity is 95% after leaving the mouth, will the exhale become visible at 10 ° C air temperature, in other words will there be be condensation? prove your statement with calculations. The vapor pressure of water at 35 ° C is 5.62 kPa (100% relative humidity) and its enthalpy of vaporization is 44 kJ/mol.

Q: The heat required to melt a substance is called the Enthalpy of Fusion. The enthalpy of fusion of a…

A: We know that Heat of fusion (Qfus. ) = n × ∆H°fus. Heat of vapourisation (Qvap. ) = n × ∆H°vap.…

Q: The vapor pressure of liquid octane, C3H15, is 100. mm Hg at 339 K. A sample of CgH1g is placed in a…

A: From ideal gas equation, PV=nRT Here, P is pressure, V is volume, n is the number of moles, R is the…

Q: Silicon (Si) has the diamond and GaAs has the zinc blende crystal structures. Given the lattice…

A: Given  For  silicon (Si)  has dimond like crystal structure i.e. zinc blend.  Therefore,      FCC…

Q: AH of vaporization of water is 413.2 cal/g at the normal boing point. Since virus can survive at…

A: Normal boiling point is defined as the temperature of a substance when the external pressure is…

Q: For a compound with a molecular weight of 130 g / mol, at a melting temperature of 425.15 K under 1…

A: Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: silica(a common stationary phase) has Si-OH(silanol) groups on the surface which readily form…

A: Silica has a greater affinity for polar compounds.Explanation:Silica has a greater affinity for…

Q: If you place 30.0 L of hexane (C6H14) in a sealed room that is 3.75 m long, 2 m wide, and 3 m high,…

A: Given: Volume of liquid hexane = 30.0 L = 30000 mL                             (Since 1 L = 1000 m)…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: According to Clausius-Clapeyron plot, enthalpy of vaporization can be determined by plotting a graph…

Q: Liquid hexane (bp =69°C) is placed in a closed containerat room temperature. At first, the pressure…

A: Distribution of chemical species between the vapor phase and liquid phase is known as vapor-liquid…

Q: The vapor pressure of liquid carbon tetrachloride, CCL, is 100 mm Hg at 296 K. A sample of CCL, is…

A: Here given that,  Initial volume of container  = 530 mL  Initial pressure of container  = 50 mm of…

Q: The vapor pressure of methanol (CH₃OH) at 25.0°C is 127.2 torr. A 4.35-g sample of methanol is…

A: Firstly find out how much methanol would vaporise to attain saturation vapour pressure by using…

Q: A flask contains 0.575 g of water at 22 °C. The vapor pressure of the water at this temperature is…

A:

Q: As a vapor, methanol exists to an extent as a tetramer,(CH3OH)4, in which four CH3OH molecules are…

A: Concept introduction: Tetramer means four molecules are joined together. Hydrogen bonding is the…

Q: You and your friend are sitting around a campfire and he notices that the ashes that are left after…

A: Concept based on the law of conservation of mass.

Q: The vapor pressure of water at 55ºC and 65ºC are 118.1 torr and 187.7 torr, respectively. What is…

A:

Q: What phenomenon does hydrogen bonding in water create to enable certain insects to walk on puddles…

A: Hydrogen Bonding It is the bonding that occurs between Hydrogen and an electronegative atom (F, N,…

Q: The vapor pressure of liquid acetone, CH3COCH3, is 100. mm Hg at 281 K. A 0.128 g sample of liquid…

A: The pressure in the container when equilibrium is reached and all of the liquid will evaporate or…

Q: At 0.00 °C, hexane, C6H₁4, has a vapor pressure of 45.37 mm Hg. Its AHvap is 30.1 kJ mol-1. What is…

A:

Q: Water is a good solvent for many substances. What is the molecular basis for this property, and why…

A: The geometry of the water molecule is bent and it is highly polar in nature which results in a…

Q: Explain through the concept of bonding why water was found to expand by approximately 9% when it…

A: In Liquid form, water ( H2O) molecules are continuously moving. As a result of this, there is very…

Q: A flask contains 0.695 g of water at 31 °C. The vapor pressure of the water at this temperature is…

A:

Q: At the pressure of 1.68 atm, the enthalpy of fusion is 4.96 kJ/mol at freezing point 140.83 K and…

A:

Q: The ambient temperature is 85.0°F and the humidity of the surrounding air is reported to be 64.0%.…

A: Clausius-Clapeyron equation is given below.

Q: The vapor pressure of liquid diethyl ether, C,H;OC,Hs, is 100. mm Hg at 262 K. A sample of C,H;OC,Hg…

A: Given: Vapor pressure of diethyl ether = 100 mmHg. Initial volume of container = 530 mL. Final…

Q: The vapor pressure of liquid diethyl ether, C2H5OC2H5, is 100. mm Hg at 262 K. A 0.112 g sample of…

A: Given: Mass of diethyl ether = 0.112 g. Temperature = 262 K Volume of vessel = 400 mL = 0.400 L…

Q: For benzene (C6H6), the normal boiling point is 80.1 Degree Celsius and the enthalpy of vaporization…

A:

Q: How much energy must be removed from a 92.5 g sample of benzene (M = 78.11 g/mol) at 325 K to freeze…

A: The energy removed is calculated as follows

Q: The vapour pressure of a substance describes how readily molecules at the surface of the substance…

A: Atmospheric pressure at sea level is 760 mmHg.  Boiling point of water at sea level is 100 °C. At…

Q: 1.5 moles of Nesfruta Dalandan are added to a container having 2 liters of water on a nice day at 25…

A: Given that -  Moles of Nesfruta Dalandan = 1.5 mol  Volume of water = 2 L =2000 mL Temperature =…

Q: Say that you place a drop of each of the following substances on wax paper: water, hexane,…

A: Given that, we place a drop of each of the following substances on wax paper: water, hexane,…

Q: dT (a) Determine the value of for cyclohexane at T = 353.89 K using the Clapeyron equation and…

A: (a) According to Clapeyron equation,                              dP/dT = ∆vapH / Tboil . ∆V…

Q: 1 of 15 > The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data…

A:

Q: At ordinary temperatures, water is a poor solvent for or-ganic substances. But at high pressure and…

A: The vapour pressures ( P1 and P2) of a liquid measured at temperatures ( T1 and T2) are related to…

Q: For inorganic solid compounds, solubility in water is     usually increased by an increase in…

A: Given, for inorganic solid compound, solublity in water is-

Q: The vapor pressure of a liquid doubles when the temperature is raised from 71°C to 81°C. At what…

A:

Q: Consider the following equation:             ln(Pvap) = −[(∆Hvap)/(R)]([ 1/(T)]) + C        (Note…

A: We need to determine heat of vaporisation with the help of graph between ln (Pvap) and (1/T).

Q: Explain and compare the trends in the graph for change in temperature on evaporation for these…

A: A question based on properties of liquids that is to be accomplished.

Q: The vapor pressure of methanol (CH₃OH) at 25°C is 127.2 torr. A 6.25-g sample of methanol is placed…

A: Mass of Methanol (m) = 0.658 g

Q: 03, the odorous constituent of oil of wintergreen, has a vapor pressure of 1 10.0 torr at 95.3° C.…

A:

Q: Determine the vapor pressure of a liquid in kPa at 383 K. The enthalpy change is 29 kJ/mol. At 310…

A:

Q: 44) If a sample of H₂ gas is collected over H₂O at 26,4 C and 753,2 mm Hg, occupiees a volume of…

A:

Q: At 0.00 °C, hexane, C6H14, has a vapor pressure of 45.37 mm Hg. Its AHvap is 30.1 kJ mol-¹. What is…

A: The objective of this question is to calculate the vapor pressure of hexane at a different…

Q: Which of the following is NOT a standard reaction of formation at room temperature? ON₂ (g) + O2(g)…

A: Two questions based on properties of gas. A question based on the temperature of formation of gas…