(a)
Interpretation:
The entropy changes associated with the phase transitions of sodium has to be found.
Concept Introduction:
Entropy is a
Where,
(a)

Answer to Problem 7PPB
Solution:
The entropy changes associated with the solid-liquid transitions
The enthalpy changes associated with the solid-liquid transitions
The melting point of sodium is found to be
Explanation of Solution
Given,
To calculate
To calculate
To calculate melting point of
The melting point of
The temperature in Kelvin is converted into degree Celsius by subtracting the value of
The entropy changes associated with the phase transitions of sodium was found.
(b)
Interpretation:
The entropy changes associated with the phase transitions of sodium has to be found.
Concept Introduction:
Entropy is a thermodynamic quantity, which is the measure of randomness in a system. The term entropy is useful in explaining the spontaneity of a process. For all spontaneous process in an isolated system there will be an increase in entropy. Entropy is represented by the letter ‘S’. It is a state function. The change in entropy gives information about the magnitude and direction of a process. The entropy changes associated with a phase transition reaction can be found by the following equation.
Where,
(b)

Answer to Problem 7PPB
The entropy changes associated with the liquid-vapour transitions
The enthalpy changes associated with the liquid-vapour transitions
The boiling point of sodium is found to be
Explanation of Solution
Given,
To calculate
To calculate
To calculate boiling point of
The boiling point of
The temperature in Kelvin is converted into degree Celsius by subtracting the value of
The entropy changes associated with the phase transitions of sodium was found.
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Chapter 14 Solutions
CHEMISTRY:ATOMS FIRST (LL)>CUSTOM PKG.<
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- Calculate the percent ionization for 0.0025 M phenol. Use the assumption to find [H3O+] first. K = 1.0 x 10-10arrow_forwardThe Ka for sodium dihydrogen phosphate is 6.32 x 10-8. Find the pH of a buffer made from 0.15 M H2PO4- and 0.25 M HPO42- .arrow_forwardThe Ka for lactic acid is 1.4 x 10-4. Find the pH of a buffer made from 0.066 M lactic acid and 0.088 M sodium lactate.arrow_forward
- Zaitsev's Rule 3) (a) Rank the following alkenes in order of decreasing stability. most stable A B C D > > > (b) Rank the following carbocations in order of decreasing stability least stable B C Darrow_forwardCalculate the pH of 0.25 M acetic acid.arrow_forwardCalculate the pH of 0.066 M ammonium ion.arrow_forward
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