If we consider that 1/6, in place of 1/12, the mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will (A) be a function of the molecular mass of the substance (B) remain unchanged (C) increase two-fold (D) decrease twice?

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If we consider that 1/6, in place of 1/12, the mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will (A) be a function of the molecular mass of the substance (B) remain unchanged (C) increase two-fold (D) decrease twice?

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If we consider that 1/6, in place of 1/12, the mass of carbon atom is ...

Answer:

Introduction:
In this question, we are given that the mass of a carbon atom is taken to be 1/6 (instead of 1/12) of the relative atomic mass unit. We need to determine the effect of this change on the mass of one mole of a substance.

Mass of Carbon Atom:
The relative atomic mass unit (u) is based on the mass of a carbon atom. Normally, the mass of a carbon atom is defined as 1/12th of the mass of a carbon-12 atom. However, in this question, we are considering it to be 1/6th of the mass of a carbon-12 atom.

The Mass of One Mole of a Substance:
The mass of one mole of a substance is equal to its molar mass. Molar mass is the mass of one mole of a substance expressed in grams. It is calculated by summing up the atomic masses of all the atoms present in one mole of the substance.

Effect of Change in Mass of Carbon Atom:
If the mass of a carbon atom is taken to be 1/6th of the relative atomic mass unit, it means that the atomic masses of all the elements will be half of their actual values. This change will have the following effects on the mass of one mole of a substance:

1. Molecular Mass:
The molecular mass of a substance is the sum of the atomic masses of all the atoms in one molecule of the substance. Since the atomic masses are halved, the molecular mass will also be halved.

2. Avogadro's Number:
Avogadro's number (6.022 x 10^23) represents the number of atoms or molecules in one mole of a substance. It is a constant value. This number does not change with the change in the mass of a carbon atom.

3. Mass of One Mole:
The mass of one mole of a substance is equal to its molar mass. As discussed earlier, the molecular mass is halved due to the change in the atomic masses. Therefore, the molar mass will also be halved. This means that the mass of one mole of a substance will decrease by half.

Conclusion:
In conclusion, if we consider that 1/6 (instead of 1/12) of the relative atomic mass unit is the mass of a carbon atom, the mass of one mole of a substance will decrease by half. Therefore, the correct option is (D) decrease twice.

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If we consider that 1/6, in place of 1/12, the mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will (A) be a function of the molecular mass of the substance (B) remain unchanged (C) increase two-fold (D) decrease twice? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If we consider that 1/6, in place of 1/12, the mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will (A) be a function of the molecular mass of the substance (B) remain unchanged (C) increase two-fold (D) decrease twice? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If we consider that 1/6, in place of 1/12, the mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will (A) be a function of the molecular mass of the substance (B) remain unchanged (C) increase two-fold (D) decrease twice?.

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