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  • Assertion : The volume of a gas and the number of moles of gas have an inverse relationship, meaning that as the number of moles of gas increases, the volume of the gas w

Assertion : The volume of a gas and the number of moles of gas have an inverse relationship, meaning that as the number of moles of gas increases, the volume of the gas will decrease, and vice versa. 

Reason : The ratio by volume of gaseous reactants and products is in relation to their mole ratio.

Option: 1

Both assertion and reason are true, and the reason is the correct explanation of the assertion.


Option: 2

Both assertion and reason are true, but the reason is not the correct explanation of the assertion


Option: 3

The assertion is true, but the reason is false.


Option: 4

The assertion is false, but the reason is true.


Answers (1)

best_answer

The assertion and reason both are correct and related to each other, but they are not directly dependent on each other. Let's break them down:

Assertion: The volume of a gas is inversely proportional to the number of moles of gas.

This assertion is correct according to Avogadro's Law, which states that, at a given temperature and pressure, the volume of a gas is directly proportional to the number of moles of gas. In other words, as the number of moles of gas increases, the volume of the gas decreases proportionally, and vice versa.

Reason: The ratio by volume of gaseous reactants and products is in agreement with their mole ratio.

This reason is related to the stoichiometry of chemical reactions. The mole ratio of reactants and products in a balanced chemical equation determines the ratio of their volumes at a given temperature and pressure, assuming they are all gases. This is known as the Volume Ratio Law or Gay-Lussac's Law. Therefore, the ratio of volumes of gaseous reactants and products is in agreement with their mole ratio.

Overall, the assertion and reason are both correct and related, but the reason is not necessarily required to prove the assertion.

Posted by

seema garhwal

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