24Jan18 Quiz u1m2lastday.pdf (1 page) Q Search 1. Given that potential energy in

Question

24Jan18 Quiz u1m2lastday.pdf (1 page) Q Search 1. Given that potential energy increases with average particle distance, rank the following phases in terms of increasing potential energy 2. Rank the following phases in terms of increasing numbers of configurations 3. Using the diagram given, select all the correct answers that are consistent with the diagram A) Heating a solution of water and sugar will increase the amount of the mixed (water +sugar) solution UM Ep B) Heating a solution of water and a metal salt will decrease the amount of the mixed (water + metal salt) solution c Cooling a solution of water and a oily substance will increase the amount of the mixed (water + oily substance) solution D) Cooling a solution of water and a table salt will decrease the amount of the mixed (water +table salt) 4. Build an argument for evaporation (liquid ->gas occurring at temperature lower than the boiling point). Hint: Use the distribution of speeds or kinetic energy. Your answer must include the word potential energy

Explanation / Answer

One question at a time.

Q1. Potential Energy increases with increasing particle distance. So, larger the distance between particles, larger the potential energy.

We know that solids have lowest particle distance, as molecules are tightly packed, followed by closely packed liquid state, and lastly the free motion particles of gaseous state. Hence, the potential energy is least for solid and maximun for a gas.

Hence,

A. s < l < g

Have a nice day!

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