The strength of intermolecular forces between particles affects physical properties of substances such as boiling point, melting
2 answers:
Answer:
D) C6H6
Explanation:
The strength of intermolecular forces between particles affects physical properties of substances such as boiling point, melting point, surface tension, and vapor pressure. Which substance has the highest melting point
A) C2H5O
B) C2H6
C) H2O
D) C6H6
C2H5O has a melting point of
C2H6 has a melting point of
H2O
has a melting point of
c6h6 has a melting point of
benzene as the highest melting point
When molecules are tightly packed together, a substance has a higher melting point than a substance with molecules that do not pack well. ... Molecular mass also affects the melting point. , smaller molecules melt at lower temperatures than larger molecules.
melting point is the temperature at which a substance coexist as both solid and liquid without any noticeable change in temperature
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Question: How fast was the arrow moving before it joined the block?
Answer:
The arrow was moving at 15.9 m/s.
Explanation:
The law of conservation of energy says that the kinetic energy of the arrow must be converted into the potential energy of the block and arrow after it they join:
where is the mass of the arrow,
is the mass of the block,
of the change in height of the block after the collision, and
is the velocity of the arrow before it hit the block.
Solving for the velocity , we get:
and we put in the numerical values
,
and simplify to get:
The arrow was moving at 15.9 m/s