Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Question
Chapter 15, Problem 96E
Interpretation Introduction
Interpretation:
The amount of heat required to raise the temperature of solid chromium from
Concept introduction:
The amount of energy required to change the state of a substance is known as enthalpy. It is the different in the energy of final and initial state of a substance. The negative and positive sign of enthalpy indicates the energy released and energy absorbed, respectively, during the phase change.
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Given these reactions, where X represents a generic metal or metalloid
1) H, (g) + ¿0,(g) –→ H,O(g)
AH = -241.8 kJ
2) X(s) + 2 Cl,(g)
> XCl,(s)
ΔΗ
+153.9 kJ
3) H,(g) + ¿Cl, (g) → HCI(g)
AH3 = -92.3 kJ
4) X(s) + O2(g) -
XO,(s)
AH4 = -520.3 kJ
5) Н, О(@) — Н,о)
AH5 = -44.0 kJ
what is the enthalpy, AH, for this reaction?
XCI, (s) + 2 H,O(1) -
· XO,(s) + 4 HCI(g)
-995
ΔΗ-
kJ
Incorrect
Consider the following reactions:
C2H6 (g) + 7/2 O2 (g) → 2 CO2 (g) + 3 H2O (l) ΔHo = − 1541 kJ
H2 (g) + ½ O2 (g) → H2O (l) ΔHo = − 286 kJ
C (s) + O2 (g) → CO2 (g) ΔHo = − 393 kJ
The enthalpy change, ΔHo, for 2 C (s) + 3 H2 (g) → C2H6 (g) is:
A.
−1541 kJ
B.
469 kJ
C.
862 kJ
D.
−103 kJ
E.
none of the above
4NH3(g) + O2(g) → 2N2(g) + 6H2O(g) ΔrH = -1267 kJmol-1
2NO(g) + O2(g) → 2NO2(g) ΔrH = -114 kJmol-1 N2(g) + 2O2(g) → 2NO2(g) ΔrH = 66.4 kJmol-1
2CH4(g) → C2H6(g) + H2(g) ΔrH = 64.6 kJmol-12KClO3(s) → 2KCl(s) + 3O2(g) ΔrH = -77.6 kJmol-1
which of these are spontaneous at all temps
Chapter 15 Solutions
Introductory Chemistry: An Active Learning Approach
Ch. 15 - Prob. 1ECh. 15 - Prob. 2ECh. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Prob. 7ECh. 15 - Prob. 8ECh. 15 - Prob. 9ECh. 15 - Prob. 10E
Ch. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - Prob. 19ECh. 15 - Prob. 20ECh. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - Prob. 25ECh. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - Prob. 30ECh. 15 - Prob. 31ECh. 15 - Prob. 32ECh. 15 - Prob. 33ECh. 15 - Prob. 34ECh. 15 - Prob. 35ECh. 15 - Prob. 36ECh. 15 - Prob. 37ECh. 15 - Prob. 38ECh. 15 - Prob. 39ECh. 15 - Prob. 40ECh. 15 - Predict which compound, CO2 or CS2, has the higher...Ch. 15 - Prob. 42ECh. 15 - Predict which compound, CH4 or CH3F, has the...Ch. 15 - Prob. 44ECh. 15 - Prob. 45ECh. 15 - Prob. 46ECh. 15 - Prob. 47ECh. 15 - Use the following vapor pressure data to answer...Ch. 15 - Prob. 49ECh. 15 - Prob. 50ECh. 15 - Prob. 51ECh. 15 - Prob. 52ECh. 15 - Prob. 53ECh. 15 - Prob. 54ECh. 15 - Prob. 55ECh. 15 - The molar heat of vaporization of substance X is...Ch. 15 - Prob. 57ECh. 15 - Prob. 58ECh. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - Prob. 61ECh. 15 - Prob. 62ECh. 15 - Prob. 63ECh. 15 - Prob. 64ECh. 15 - Prob. 65ECh. 15 - Prob. 66ECh. 15 - Prob. 67ECh. 15 - Prob. 68ECh. 15 - Prob. 69ECh. 15 - Prob. 70ECh. 15 - Prob. 71ECh. 15 - Prob. 72ECh. 15 - Prob. 73ECh. 15 - Prob. 74ECh. 15 - Prob. 75ECh. 15 - Prob. 76ECh. 15 - Find the quantity of energy released in joules as...Ch. 15 - Prob. 78ECh. 15 - Prob. 79ECh. 15 - What is the energy change when the temperature of...Ch. 15 - Prob. 81ECh. 15 - Prob. 82ECh. 15 - Prob. 83ECh. 15 - Prob. 84ECh. 15 - Prob. 85ECh. 15 - Prob. 86ECh. 15 - Prob. 87ECh. 15 - Prob. 88ECh. 15 - Prob. 89ECh. 15 - Prob. 90ECh. 15 - Prob. 91ECh. 15 - Prob. 92ECh. 15 - Prob. 93ECh. 15 - The following information is given for n-pentane...Ch. 15 - Prob. 95ECh. 15 - Prob. 96ECh. 15 - Prob. 97ECh. 15 - The following information is given for bismuth at...Ch. 15 - Prob. 99ECh. 15 - Classify each of the following statements as true...Ch. 15 - Prob. 101ECh. 15 - Prob. 102ECh. 15 - Prob. 103ECh. 15 - Prob. 104ECh. 15 - Prob. 105ECh. 15 - Prob. 106ECh. 15 - Prob. 107ECh. 15 - Prob. 108ECh. 15 - A calorimeter contains 72.0g of water at 19.2C. A...Ch. 15 - Prob. 110ECh. 15 - Prob. 111ECh. 15 - Prob. 112ECh. 15 - Prob. 113ECh. 15 - It is a hot summer day, and Chris wants a glass of...Ch. 15 - Prob. 15.1TCCh. 15 - Prob. 15.2TCCh. 15 - Prob. 15.3TCCh. 15 - Prob. 15.4TCCh. 15 - Prob. 15.5TCCh. 15 - Prob. 15.6TCCh. 15 - Prob. 15.7TCCh. 15 - Prob. 15.8TCCh. 15 - Prob. 1CLECh. 15 - Prob. 2CLECh. 15 - Prob. 3CLECh. 15 - Prob. 4CLECh. 15 - Prob. 5CLECh. 15 - Prob. 6CLECh. 15 - Prob. 7CLECh. 15 - Prob. 1PECh. 15 - Prob. 2PECh. 15 - Prob. 3PECh. 15 - Prob. 4PECh. 15 - Prob. 5PECh. 15 - Prob. 6PECh. 15 - Prob. 7PECh. 15 - Prob. 8PE
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- The equation for the fermentation of glucose to alcohol and carbon dioxide is: C6H12O6(aq) 2C2H5OH(aq) + 2CO2(g) The enthalpy change for the reaction is 67 kJ. Is this reaction exothermic or endothermic? Is energy, in the form of heat, absorbed or evolved as the reaction occurs?arrow_forwardThe following reaction is endothermic. KCIO4(s) K(s) + 1/2 Cl₂(g) + 2 0₂(g) ΔΗ(1) = 433 kJ Calculate the enthalpy change for the reaction of the elements to form one mole of KCIO4(s). ΔΗ(2) = K(s) + 1/2 Cl₂(g) + 2 O₂(g)→→KCIO4(s) KJarrow_forwardThe following information is given for antimony at latm: boiling point = 1440 °C AHvap(1440 °C) = 195 kJ/mol melting point = 631 °C AHfus(631 °C) = 19.6 kJ/mol specific heat solid= 0.209 J/g°C specific heat liquid= 0.259 J/g°C What is AH in kJ for the process of freezing a 29.9 g sample of liquid antimony at its normal melting point of 631 °C. kJarrow_forward
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