Question

Які твердження є правильними? Маса молекули азоту дорівнює масі атома Гелію Траєкторія руху молекули газу – ламана лінія Рідини легко стискуються У твердих тілах дифузія не відбувається Кількість молекул у молі будь-якої речовини є однаковою Молярна маса аргентум нітрату (AgNO3) 0,170 кг/моль За однакової температури швидкість дифузії в газі більша, ніж у рідині​

Answer 1

Ответ:

1.Траєкторія руху молекули газу - ламана лінія

2.За однакової температури швидкість дифузії в газі більша, ніж у рідині

3.Молярна маса аргентум нітрату (AgNO3) 0,170 кг/моль

Answer 2

Mass of Nitrogen Molecule vs. Helium Atom

The statement "The mass of a nitrogen molecule is equal to the mass of a helium atom" is incorrect. The mass of a nitrogen molecule (N2) is much greater than the mass of a helium atom (He). The molar mass of nitrogen (N2) is approximately 28 grams per mole, while the atomic mass of helium is approximately 4 grams per mole [[1]].

Trajectory of Gas Molecules

The statement "The trajectory of gas molecules is a broken line" is incorrect. The trajectory of gas molecules is not a broken line but rather a random and continuous motion. Gas molecules move in straight lines until they collide with other molecules or the walls of the container, at which point they change direction [[2]].

Compressibility of Liquids

The statement "Liquids are easily compressible" is incorrect. Liquids are generally considered to be incompressible compared to gases. While it is possible to compress liquids under extreme pressure, the change in volume is typically very small [[3]].

Diffusion in Solids

The statement "Diffusion does not occur in solids" is incorrect. Diffusion can occur in solids, although it is generally slower compared to liquids and gases. In solids, diffusion is facilitated by the movement of atoms or molecules through the crystal lattice [[4]].

Number of Molecules in a Mole

The statement "The number of molecules in a mole of any substance is the same" is correct. Avogadro's constant, which is approximately 6.022 x 10^23, represents the number of particles (atoms, molecules, ions, etc.) in one mole of a substance. This constant is the same for all substances [[5]].

Molar Mass of Silver Nitrate (AgNO3)

The statement "The molar mass of silver nitrate (AgNO3) is 0.170 kg/mol" is incorrect. The molar mass of silver nitrate (AgNO3) is approximately 169.87 grams per mole [[6]].

Diffusion Rate in Gas vs. Liquid

The statement "At the same temperature, the diffusion rate in a gas is greater than in a liquid" is correct. At the same temperature, gas molecules have higher kinetic energy and move faster compared to liquid molecules. This results in a higher diffusion rate in gases compared to liquids [[7]].

Please let me know if you have any further questions!