1. Values of Kw as a function of temperature are as follows: Temperature (°C) 0 25 35 40 50 Kw 1.14 x 10-15 1.00 x 10-14 2.09 x 10-14 2.29 x 10-14 5.47 x 10-14 a. Is the autoionization of water exothermic or endothermic? Only legible answers in the provided box will be considered. The autoronization of water is endothermic. As the temperature increases ko gets bigger, this means that the autolonization of water fowers products as temps. get higher. There's more H₂0+ present from the lonization of water at higher temps. Гон7 н.611 b. Calculate [H*] and [OH-] in a neutral solution at 50 °C H₂0 = H²(aq) +0H(aq) Ht
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![1. Values of Kw as a function of temperature are as follows:
Temperature (°C)
0
25
35
40
50
Kw
1.14 x 10-15
1.00 x 10-14
2.09 x 10-14
2.29 x 10-14
5.47 x 10-14
a. Is the autoionization of water exothermic or endothermic? Only legible answers
in the provided box will be considered.
The autoronization of water
is endothermic. As the temperature
increases ko gets bigger, this means that the autolonization of water
fowers products as temps get higher. There's more H₂0+ present from the lonization
of water at higher temps.
Ku= [OH] [#₂0]
pott/ pH=7
b. Calculate [H*] and [OH-] in a neutral solution at 50 °C
+₂0 = H²(g) +0H(aq)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2af39711-f9cc-45d1-8823-e5c52f0219bd%2Ff22d8244-2134-482c-bc8f-910d7d17ee68%2F8cwmkb_processed.jpeg&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
