The Molecular Weight of an unknown liquid is determined using the Dumas Method. The following data has been obtained: Atmospheric Pressure = 754.6 Torr Volume of the Flask = 213 mL Temp. of Water Bath = 100 °C Mass of Re-Condensed Liquid = 0.582 g What is the Molecular Weight of the liquid?

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A: According to Charles's law, the volume of the gas increases when the temperature of the gas…

Q: would you not expect the saturation vapor pressure to fall zero, even at extremely low temperatures?

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Q: GIve reason why is the temperature increased at compression and decreased at rarefaction?

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A: Given, % N = 0.04489×V(P-P°H2O)W(273+tc)where,V= volume of N2collected over water tc=temperature P=…

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Q: Can you give four real-life applications of cooling curve and determination of the freezing point of…

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

Q: Explain the following: Saturated vapour pressure of a liquid. Constant boiling point miture:

A: i)  Saturated vapor pressure of a liquid: The force that is exerted on the walls of a closed…

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A: Amount of heat added = 6.0 kJ/mol  Starting temperature of X = 0 oC Since the starting temperature…

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A: The number of moles of the liquid can be calculated from ideal gas equation.

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A: Here,Mass of liquid = 0.0153 gTemperature (T) = 58.5°C = (58.5+273)K                            =…

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Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.