For vaporization of water at 1 atmospheric pressure, the values of and are 40.63 kJmol⁻¹ and 108.8 JK⁻¹ mol⁻¹, respectively. The temperature when Gibbs energy change () for this transformation will be zero, is:
(a) 293.4 K
(b) 273.4 K
(c) 393.4 K
(d) 373.4 K.
Answers
Answered by
15
Answer:
∆G = 0
∆H - T (∆s) = 0
∆H = T ∆s
T = (40.63/108.8) × 1000 = 373.43 K
So , option (D) is correct
Answered by
1
The temperature when Gibbs energy change () for this transformation will be zero is 373.4 K
Explanation:
According to Gibb's equation:
= Gibbs free energy = 0
= enthalpy change = = 40630 J/mol
= entropy change =
T = temperature in Kelvin
= +ve, reaction is non spontaneous
= -ve, reaction is spontaneous
= 0, reaction is in equilibrium
Learn More about Gibbs equation
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