Let's Check Your Knowledge Of Properties Of Gas...

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1. What is an ideal gas?

Explanation

An ideal gas is a theoretical concept in physics and chemistry that follows the ideal gas law, which states that the product of pressure (p) and volume (v) is directly proportional to the product of the number of moles of gas (n) and the temperature (T), represented by the gas constant (R). The equation pv = RT is a representation of this law, where p is the pressure, v is the volume, R is the gas constant, and T is the temperature. Therefore, the correct answer is "which obeys the law pv = RT."

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Lets Check Your Knowledge Of Properties Of Gas... - Quiz

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2. The volume occupied by one number of unit mol of gas is called as

Explanation

The term "molar volume" refers to the volume occupied by one mole of a gas at a specific temperature and pressure. It is a measure of the amount of space that one mole of gas particles occupies. The molar volume is a useful concept in chemistry as it allows for easy comparison of gas volumes and is often used in stoichiometric calculations and the ideal gas law.

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3. What is the volume of a gram mole of hydrogen at 760 mm Hg and 0 °C ?

Explanation

At standard temperature and pressure (STP), which is 0 °C and 760 mm Hg, one mole of any ideal gas occupies a volume of 22.4 liters. Therefore, the correct answer is 22.4 liters.

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4. The perfect example of an ideal gas is

Explanation

None of the options provided (air, hydrogen, water vapor) can be considered as a perfect example of an ideal gas. An ideal gas is a theoretical concept that follows certain assumptions, such as having particles with negligible volume and no intermolecular forces. While air, hydrogen, and water vapor exhibit gas-like behavior, they deviate from the ideal gas behavior to some extent due to factors like intermolecular forces and non-negligible particle volume. Therefore, none of the given options can be considered a perfect example of an ideal gas.

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5. What is a mole of a substance?

Explanation

One mole of a substance is defined as the amount of that substance that contains the same number of particles (atoms, molecules, or ions) as there are atoms in exactly 12 grams of carbon-12. The mass of one mole of a substance is numerically equal to its molecular weight (or molar mass) in grams. Therefore, the correct answer is "One mole has a mass numerically equal to the molecular weight of the substance."

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6.  In which condition can real gas closely obey the ideal gas equation?

Explanation

Real gases closely obey the ideal gas equation when the pressure is very small and the temperature is very high. At low pressures, the intermolecular forces between gas molecules become negligible, allowing the gas to behave more like an ideal gas. Additionally, at high temperatures, the kinetic energy of the gas molecules increases, causing them to move more rapidly and collide with each other less frequently. This combination of low pressure and high temperature reduces the effects of intermolecular forces and allows the gas to closely follow the ideal gas equation.

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7. According to the Avogadro's law, what is the relation between volume of 1 kg mol of oxygen and volume of 1 kg mol of nitrogen, at normal pressure and temperature? (Mass of 1 kg mol of oxygen is 32 kg and mass of 1 kg mol of nitrogen is 28 kg)

Explanation

According to Avogadro's law, equal volumes of gases at the same temperature and pressure contain the same number of molecules. Since both oxygen and nitrogen have the same number of moles (1 kg mol) and are at the same temperature and pressure, their volumes will be the same. Therefore, the correct answer is that the volume of 1 kg mol of oxygen is the same as that of nitrogen.

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What is an ideal gas?
The volume occupied by one number of unit mol of gas is called as
What is the volume of a gram mole of hydrogen at 760 mm Hg and 0...
The perfect example of an ideal gas is
What is a mole of a substance?
 In which condition can real gas closely obey the ideal gas...
According to the Avogadro's law, what is the relation between...
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