Van der Waal forces are weak attractive forces that can exist between all kinds of atoms and molecules, regardless of their polarity. They are responsible for the physical properties of substances, such as melting and boiling points.
3132
The pH (power of Hydrogen) value of black coffee is
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3133
Which statement is not true regarding the van der Waals equation?
The van der Waals equation accounts for intermolecular forces and molecular volume. At high densities, the equation actually deviates more significantly from ideal gas behavior, not reduces to it, because the assumptions of the ideal gas law are less valid.
3134
Vicinal dihalide eliminates two molecules of hydrogen halides from adjacent carbon atoms on treatment with
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3135
The whole universe is made up of almost _______of Hydrogen?
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3136
Why does Ethyl Alcohol exhibit a higher boiling point compared to Acetone?
Ethyl Alcohol shows high boiling point compared to Acetone because it forms hydrogen bonds between its molecules. These intermolecular forces require more energy to break, which is reflected in the higher boiling point. This phenomenon is a characteristic of polar molecules like Ethyl Alcohol.
3137
Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be_______________?
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3138
Which of the following intermolecular forces has the lowest strength?
Vander Waals forces are relatively weak compared to other types of intermolecular forces like hydrogen bonding and ionic interactions, and even forces among polar molecules. They arise due to temporary dipoles formed in atoms or molecules.
3139
The radioactive isotope of hydrogen is called___________?
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3140
At what distance do the attractive forces between hydrogen atoms surpass the repulsive forces?
The distance at which attractive forces between hydrogen atoms overcome repulsive forces is a specific value, representing the equilibrium bond length. This value is 75.4 pm, indicating the point where the attractive and repulsive forces are balanced.
