1. gases are made up of molecules which are relatively far apart.
2. the molecules are in motion at high speeds.
3. the molecular collisions are perfectly elastic.
4. increase in temperature increases the kinetic energy of the molecules.

which of the above assumptions accounts for the compressibility of gases as compared to liquids and solids?

a) 1
b) 2
c) 3
d) 4
e) 2 and 3
f) 3 and 4

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

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