Answer:
These linear thermal expansion coefficients are room temperature values of metals. Linear thermal expansion coefficient is defined as material's fractional change in length divided by the change in temperature.
Explanation:
Answer :
(A) The value of 
at 298 K is, 1521.9 kJ
(B) The value of at 3652 K is, -301.59 kJ
Explanation :
Part A :
where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:
Part B :
where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:
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Explanation:
