(C) Statement-$I$ is correct: Thermal energy promotes random motion of particles,while intermolecular forces hold them together. If thermal energy dom

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Both Statement-$I$ and Statement-$II$ are correct

(C) Statement-$I$ is correct: Thermal energy promotes random motion of particles,while intermolecular forces hold them together. If thermal energy dominates,the particles move apart,leading to a gaseous state.Statement-$II$ is correct: From the ideal gas equation,$PV = nRT$. Since $n = \frac{m}{M}$,we have $PV = \frac{m}{M}RT$. Rearranging gives $P = \frac{m}{V} \times \frac{RT}{M}$,where $\frac{m}{V} = d$ (density). Thus,$P = d \times \frac{RT}{M}$. At constant temperature $(T)$ and molar mass $(M)$,$P \propto d$ or $d \propto P$.

Class 11 Chemistry States of Matter Mix Examples- States of Matter

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Consider the following statements:
Statement-$I$: If thermal energy is stronger than intermolecular forces,the substance prefers to be in a gaseous state.
Statement-$II$: At constant temperature,the density of an ideal gas is proportional to its pressure.
The correct answer is:

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A
Statement-$I$ is correct,but Statement-$II$ is not correct
B
Statement-$I$ is not correct,but Statement-$II$ is correct
C
Both Statement-$I$ and Statement-$II$ are correct
D
Both Statement-$I$ and Statement-$II$ are not correct

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At $298 \ K$, a flask '$A$' of unknown volume $(V)$ contains oxygen at $5 \ atm$. Another flask '$B$' of volume $2 \ L$ contains helium at $3 \ atm$. Two flasks are connected together by a small tube of zero volume. After the two gases are completely mixed, if the resulting mixture is found to have the mole fraction of oxygen as $0.2$, the volume of flask '$A$' (in $L$) is (Assume oxygen and helium as ideal gases)

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Under the same $P$ and $T$,which of the following pairs of gases will diffuse at the same rate through a small jet?

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Why does a sharp glass edge become smooth on heating it up to its melting point in a flame? Explain which property of liquids is responsible for this phenomenon.

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$A$ $4 : 1$ molar mixture of $He$ and $CH_4$ is kept in a vessel at $20 \ bar$ pressure. Due to a hole in the vessel,the gas mixture leaks out. What is the composition of the mixture effusing out initially?

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Which one of the following is the wrong statement about the liquid?

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Consider the following statements:Statement-$I$: If thermal energy is stronger than intermolecular forces,the substance prefers to be in a gaseous state.Statement-$II$: At constant temperature,the density of an ideal gas is proportional to its pressure.The correct answer is:

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Under the same $P$ and $T$,which of the following pairs of gases will diffuse at the same rate through a small jet?

Why does a sharp glass edge become smooth on heating it up to its melting point in a flame? Explain which property of liquids is responsible for this phenomenon.

$A$ $4 : 1$ molar mixture of $He$ and $CH_4$ is kept in a vessel at $20 \ bar$ pressure. Due to a hole in the vessel,the gas mixture leaks out. What is the composition of the mixture effusing out initially?

Which one of the following is the wrong statement about the liquid?

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Consider the following statements:
Statement-$I$: If thermal energy is stronger than intermolecular forces,the substance prefers to be in a gaseous state.
Statement-$II$: At constant temperature,the density of an ideal gas is proportional to its pressure.
The correct answer is: