Question 4 What is AU for the formation of 1 mole of CO at 1 atm and 25°C? (Answer in Four Significant Figures) C(graphite) +1/2O2(g) → CO(g)AH = -110.5 kJ/mol Answer 1: kJ/mol (You left this blank) Question 5 mar 544cools from 940°C to 5.0°C. Calculate the metal's heat change (in kilojoules). (Answe

Question 4 What is AU for the formation of 1 mole of CO at 1 atm and 25°C? (Answer in Four Significant Figures) C(graphite) +1/2O2(g) → CO(g)AH = -110.5 kJ/mol Answer 1: kJ/mol (You left this blank) Question 5 mar 544cools from 940°C to 5.0°C. Calculate the metal's heat change (in kilojoules). (Answe

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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Consider the reaction shown: H2(g) + 1 2O2(g) --> H2O(l) ΔH = -286 kJ/mol We can say that this reaction is ________ and that the sign of ΔH is ________. Group of answer choices exothermic; neither positive nor negative exothermic; negative exothermic; positive endothermic; positive endothermic; negative
J In the table below are the specific heat capacities of three metals in g-K Substance Specific Heat Aluminum 0.900 Gold 0.129 Copper 0.385 The amount of heat required to raise 4.00g of an unknown metal (Aluminum, Copper, or Gold) by 20.0 K is 72.0OJ. What is the metal?
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QUESTION 5 Consider the following thermochemical data: Cl2(g) → 2CI(g) AH° = 242.3 kJ I2(g) → 21(g) AH° = 151.0 kJ IC(g) → 1(g) + CI(g) AH° = 211.3 kJ I2(s) → 12(g) AH° = 62.8 kJ Calculate AH° for the following reaction: ½l2(s) + ½C/2(g) ICI(g)
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i attached the screenshot please check and solve it. MMmm
Given the thermochemical equation: 2Cu2O(s) ⟶⟶ 4Cu(s) + O2(g) Calculate the enthalpy change for the reaction if 14.7 kJ of energy is consumed in the reaction when 11.2 g of copper is produced. Group of answer choices 0.176 kJ 83.5 kJ 334 kJ -83.5 kJ -334 kJ
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Question 1 of 11 > If a system has 475 kcal of work done to it, and releases 5.00 x 10² kJ of heat into its surroundings, what is the change in internal energy (AE or AU) of the system? AE = kJ
Question 17 of 35 Submit When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose? kJ/mol 1 3 4 C 7 +/- x 10 0 Tap here or pull up for additional resources LO 00
Can you explain this with an explaination please?