Interpretation Introduction To determine: The final temperature. Explanation Given info: The mass of granite = 12.5 g. The initial temperature of granite = 82 ∘ C . The mass of water = 25.0 g. The initial temperature of water = 22 ∘ C . The C s for water = 4.18 J/(g o C) . The C s for granite = 0.790 J / ( g ∘ C ) . The formula for calculating heat is as follows: q = m × C s × Δ T In order to find the final temperature, or the temperature at equilibrium, we set the heat capacity for the metal and the water equal, except Q for water is negative because it loses heat energy. Let the final temperature be T . Heat lost = Heat gained. m w × C s × Δ T = − ( m g × C s × Δ T ) 25

Chemistry: A Molecular Approach (4th Edition)

4th Edition

ISBN: 9780134112831

Author: Nivaldo J. Tro

Publisher: PEARSON

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Interpretation Introduction

To determine: The final temperature.

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Chemistry: A Molecular Approach (4th Edition)

Ch. 6 - A chemical system produces 155 kJ of heat and does...Ch. 6 - Q2. Which sample is most likely to undergo the...Ch. 6 - Prob. 3SAQ Ch. 6 - Q4. A 12.5-g sample of granite initially at 82.0...Ch. 6 - Q5. A cylinder with a moving piston expands from...Ch. 6 - Prob. 6SAQ Ch. 6 - Q7. Hydrogen gas reacts with oxygen to form...Ch. 6 - Prob. 8SAQ Ch. 6 - Prob. 9SAQ Ch. 6 - Prob. 10SAQ

Ch. 6 - Prob. 11SAQ Ch. 6 - Prob. 12SAQ Ch. 6 - Prob. 13SAQ Ch. 6 - Prob. 14SAQ Ch. 6 - Q15. Natural gas burns in air to form carbon...Ch. 6 - 1. What is thermochemistry? Why is it important? Ch. 6 - 2. What is energy? What is work? List some...Ch. 6 - Prob. 3E Ch. 6 - 4. State the law of conservation of energy. How...Ch. 6 - Prob. 5E Ch. 6 - 6. State the first law of thermodynamics. What are...Ch. 6 - Prob. 7E Ch. 6 - 8. What is a state function? List some examples of...Ch. 6 - 9. What is internal energy? Is internal energy a...Ch. 6 - 10. If energy flows out of a chemical system and...Ch. 6 - 11. If the internal energy of the products of a...Ch. 6 - 12. What is heat? Explain the difference between...Ch. 6 - 13. How is the change in internal energy of a...Ch. 6 - 14. Explain how the sum of heat and work can be a...Ch. 6 - 15. What is heat capacity? Explain the difference...Ch. 6 - 16. Explain how the high specific heat capacity of...Ch. 6 - 17. If two objects, A and B, of different...Ch. 6 - 18. What is pressure–volume work? How is it...Ch. 6 - 19. What is calorimetry? Explain the difference...Ch. 6 - 20. What is the change in enthalpy (ΔH) for a...Ch. 6 - 21. Explain the difference between an exothermic...Ch. 6 - 22. From a molecular viewpoint, where does the...Ch. 6 - 23. From a molecular viewpoint, where does the...Ch. 6 - 24. Is the change in enthalpy for a reaction an...Ch. 6 - Prob. 25E Ch. 6 - Prob. 26E Ch. 6 - 27. What is a standard state? What is the standard...Ch. 6 - Prob. 28E Ch. 6 - 29. How do you calculate from tabulated standard...Ch. 6 - Prob. 30E Ch. 6 - 31. What are the main environmental problems...Ch. 6 - Prob. 32E Ch. 6 - Prob. 33E Ch. 6 - Prob. 34E Ch. 6 - Prob. 35E Ch. 6 - 36. A particular frost-free refrigerator uses...Ch. 6 - 37. Which statement is true of the internal energy...Ch. 6 - Prob. 38E Ch. 6 - 39. Identify each energy exchange as primarily...Ch. 6 - 40. Identify each energy exchange as primarily...Ch. 6 - 41. A system releases 622 kJ of heat and does 105...Ch. 6 - 42. A system absorbs 196 kJ of heat and the...Ch. 6 - 43. The gas in a piston (defined as the system)...Ch. 6 - Prob. 44E Ch. 6 - Prob. 45E Ch. 6 - Prob. 46E Ch. 6 - 47. How much heat is required to warm 1.50 L of...Ch. 6 - 48. How much heat is required to warm 1.50 kg of...Ch. 6 - 49. Suppose that 25 g of each substance is...Ch. 6 - 50. An unknown mass of each substance, initially...Ch. 6 - 51. How much work (in J) is required to expand the...Ch. 6 - Prob. 52E Ch. 6 - 53. The air within a piston equipped with a...Ch. 6 - 54. A gas is compressed from an initial volume of...Ch. 6 - 55. When 1 mol of a fuel burns at constant...Ch. 6 - 56. The change in internal energy for the...Ch. 6 - 57. Determine whether each process is exothermic...Ch. 6 - 58. Determine whether each process is exothermic...Ch. 6 - 59. Consider the thermochemical equation for the...Ch. 6 - 60. What mass of natural gas (CH4) must burn to...Ch. 6 - Prob. 61E Ch. 6 - Prob. 62E Ch. 6 - Prob. 63E Ch. 6 - Prob. 64E Ch. 6 - 65. A silver block, initially at 58.5 °C, is...Ch. 6 - Prob. 66E Ch. 6 - 67. A 31.1-g wafer of pure gold, initially at 69.3...Ch. 6 - Prob. 68E Ch. 6 - Prob. 69E Ch. 6 - 70. A 2.74-g sample of a substance suspected of...Ch. 6 - 71. Exactly 1.5 g of a fuel burns under conditions...Ch. 6 - 72. In order to obtain the largest possible amount...Ch. 6 - 73. When 0.514 g of biphenyl (C12H10) undergoes...Ch. 6 - Prob. 74E Ch. 6 - 75. Zinc metal reacts with hydrochloric acid...Ch. 6 - Prob. 76E Ch. 6 - 77. For each generic reaction, determine the value...Ch. 6 - Prob. 78E Ch. 6 - 79. Calculate ΔHrxn for the reaction: Fe2O3(s) + 3...Ch. 6 - 80. Calculate ΔHrxn for the reaction: CaO(s) +...Ch. 6 - 81. Calculate ΔHrxn for the reaction: 5 C(s) + 6...Ch. 6 - 82. Calculate ΔHrxn for the reaction: CH4(g) + 4...Ch. 6 - 83. Write an equation for the formation of each...Ch. 6 - Prob. 84E Ch. 6 - 85. Hydrazine (N2H4) is a fuel used by some...Ch. 6 - Prob. 86E Ch. 6 - Prob. 87E Ch. 6 - Prob. 88E Ch. 6 - 89. During photosynthesis, plants use energy from...Ch. 6 - Prob. 90E Ch. 6 - 91. Top fuel dragsters and funny cars burn...Ch. 6 - 92. The explosive nitroglycerin (C3H5N3O9)...Ch. 6 - 93. Determine the mass of CO2 produced by burning...Ch. 6 - Prob. 94E Ch. 6 - Prob. 95E Ch. 6 - Prob. 96E Ch. 6 - Prob. 97E Ch. 6 - Prob. 98E Ch. 6 - 99. Evaporating sweat cools the body because...Ch. 6 - Prob. 100E Ch. 6 - 101. Use standard enthalpies of formation to...Ch. 6 - 102. Dry ice is solid carbon dioxide. Instead of...Ch. 6 - 103. A 25.5-g aluminum block is warmed to 65.4 °C...Ch. 6 - Prob. 104E Ch. 6 - Prob. 105E Ch. 6 - Prob. 106E Ch. 6 - 107. Derive a relationship between ΔH and ΔE for a...Ch. 6 - Prob. 108E Ch. 6 - Prob. 109E Ch. 6 - Prob. 110E Ch. 6 - Prob. 111E Ch. 6 - 112. When 10.00 g of phosphorus is burned in O2(g)...Ch. 6 - Prob. 113E Ch. 6 - 114. The of TiI3(s) is –328 kJ/mol and the ΔH°...Ch. 6 - Prob. 115E Ch. 6 - Prob. 116E Ch. 6 - Prob. 117E Ch. 6 - 118. A pure gold ring and a pure silver ring have...Ch. 6 - Prob. 119E Ch. 6 - Prob. 120E Ch. 6 - Prob. 121E Ch. 6 - Prob. 122E Ch. 6 - Prob. 123E Ch. 6 - Prob. 124E Ch. 6 - Prob. 125E Ch. 6 - Prob. 126E Ch. 6 - Prob. 127E Ch. 6 - Prob. 128E Ch. 6 - Prob. 129E Ch. 6 - Prob. 130E Ch. 6 - 131. Which statement is true of the internal...Ch. 6 - Prob. 132E Ch. 6 - 133. Which expression describes the heat evolved...Ch. 6 - Prob. 134E Ch. 6 - 135. A 1-kg cylinder of aluminum and 1-kg jug of...Ch. 6 - Prob. 136E Ch. 6 - 137. When 1 mol of a gas burns at constant...Ch. 6 - Prob. 138E Ch. 6 - Prob. 139E Ch. 6 - Have each group member write a problem involving...Ch. 6 - Prob. 141QGW Ch. 6 - Prob. 142QGW Ch. 6 - Prob. 143QGW Ch. 6 - Prob. 144DIA

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