Calculate the standardentropy change for thereaction given below,2 H202 (1) – 2 H20 (1) +02 (g);The standard molarentropy of reactants andproducts are:H2O2 (1) = 109.6 J/mol-KH20 (I) = 69.9 J/mol-K02 (g) = 205 J/mol-K125.6 J/K119.4 J/K128.5 J/KREDMI NOTE 9 PRO MAXAI QUAD CAMERA133.8 J/K Assuming no heat loss,what final temperature isexpected after 50.0 g ofwater at 20.0C is mixedwith 30.0 g of water at80.0°C? (the specific heatof water is 4.18 J/Kg-K)37.5°C17.5°C42.5°C50.0°CREDMI NOTE 9 PRO MAXAI QUAD CAMERA

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Calculate the standard entropy change for the reaction given below, 2 H202 (1) – 2 H20 (1) +

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

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.

Question

Calculate the standard
entropy change for the
reaction given below,
2 H202 (1) – 2 H20 (1) +
02 (g);
The standard molar
entropy of reactants and
products are:
H2O2 (1) = 109.6 J/mol-K
H20 (I) = 69.9 J/mol-K
02 (g) = 205 J/mol-K
125.6 J/K
119.4 J/K
128.5 J/K
REDMI NOTE 9 PRO MAX
AI QUAD CAMERA
133.8 J/K

Assuming no heat loss,
what final temperature is
expected after 50.0 g of
water at 20.0C is mixed
with 30.0 g of water at
80.0°C? (the specific heat
of water is 4.18 J/Kg-K)
37.5°C
17.5°C
42.5°C
50.0°C
REDMI NOTE 9 PRO MAX
AI QUAD CAMERA

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