Which of these choices is a physical property that does not change when the size of the sample changes? mass,volume,density,comb
1 answer:
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Answer:
Most viscous to least viscous:
Explanation:
For hydrocarbons, viscosity increases with increasing molar mass. Because increasing molar mass signifies increase in number of electrons in molecules.
We know that in non-polar hydrocarbons, only van der waal intermolecular force exists. Van der waal force is proportional to number of electrons in a molecule.
Therefore with increasing molar mass, van der waal force increases. hence molecules gets more tightly bind with each other resulting increase in viscosity.
Here molar mass order :
Therefore viscosity order :
Answer: The volume of the balloon up there is 6.192 L.
Explanation:
Given: = 1.80 L,
= 785 mm Hg (mm Hg = 0.00131579) = 1.032 atm
= 0.300 atm,
= ?
Formula used to calculate volume is as follows.
Substitute the value into above formula as follows.
Thus, we can conclude that the volume of the balloon up there is 6.192 L.