Use the information and data given below to answer the question, stronger intermolecular forces result in higher boiling point.
Strength of London forces increases with the number of electrons in the molecules. Boiling point of HF, HCI, HBr, and HI are 293 K, 189 K, 206 K and 238 K respectively.
Looking at the trend of boiling points of HCI, HBr, and HI, explain out of dipole-dipole interaction and London interaction, which one is predominant here.

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(a)

Calculate the kinetic energy of 2g of oxygen at -23^oC

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The density of liquid CO₂ at room temperature is 0.8 g cm^-3 .how large a cartridge of liquid CO₂ must be provided to inflate a life jacket of 4 L capacity at STP?

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It is desired to increase the volume of 800 mL of a gas by 20% keeping the pressure constant. To what temperature the gas must be heated if the initial temperature is 22^oC?

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150 mL of a gas at NTP were taken to 20^oC and 0.96 bar pressure. What is the change in volume of the gas?

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(a)

Calculate the pressure exerted by 10.2 g of NH₃ in a 3.0 dm³ vessel at 25^oC Using ideal gas equation. The van der Waals constants are a = 4.17 dm⁶ atm mol^-2, b = 0.0371 dm³ mol^-1

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The relation between the pressure exerted by an ideal gas(p _ideal) and observed pressure (P_real) is given by the equation, \({ P }_{ ideal }={ P }_{ real }+\frac { { an }^{ 2 } }{ { V }^{ 2 } } \) If the pressure is taken in Nm^-2, number of moles in mol and volume in m³ , calculate the unit of 'a'

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(a)

The relation between pressure exerted by an ideal gas(p _ideal) and observed pressure (P_real) is given by the equation,\({ P }_{ ideal }={ P }_{ real }+\frac { { an }^{ 2 } }{ { V }^{ 2 } } \)

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(a)

Calculate the volume occupied by 8.8g of CO₂ at 31.1^oC and 1 bar pressure. (R = 0.083 bar L K^-1mol^-1)

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(a)

Define boiling point of a liquid.

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What is the unit of coefficient of viscosity?

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Name four properties of gases.

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Give mathematical expression for ideal gas equation.

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Why liquids diffuse slowly as compared to gases?

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Why falling liquid drops are spherical?

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