Using the bond brekage and formation energy values, calculate the AH of the reaction below in kJ. C-H = 413 kJ mol-1, Cl-CI = 243 kJ mol-, F-F = 159 kJ mol", C-F = 453 kJ mol-1, C-CI = 339 kJ mol-1, H-F = 565 kJ mol-, H-CI = 427 kJ mol-1 CH.(g) + 2 Cl2(g) + 2 F2(g) → CF,CI;(g) + 2 HF(g) + 2 HCI (g)

Calculate the enthalpy change when 1.0(1 g of methane is burned in excess oxygen according to the reaction CH,(g) 4- 2O2(g) ->CO2(g) + H-CH/) 1H = -891 kJ/mol

Which sentence best describes the following reaction? 2H2(g)+O2(g)2H2O(l)+heat a. It is an endothermic reaction. b. It is an exothermic double-replacement reaction. c. It is a synthesis reaction that is also exothermic. d. It is a decomposition reaction that is also endothermic.

The heat of neutralization, Hneut, can be defined as the amount of heat released (or absorbed), q, per mole of acid (or base) neutralized. Hneut for nitric acid is -52 kJ/mol HNO3. At 27.3C, 50.00 mL of 0.743M HNO3 is neutralized by 1.00 M Sr(OH)2 in a coffee-cup calorimeter. (a) How many mL of Sr(OH)2 were used in the neutralization? (b) What is the final temperature of the resulting solution? (Use the assumptions in Question 11.)

Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer.

Using the data in the check your learning section of Example 5.5, calculate H in kJ/mol of AgNO3(aq) for the reaction: NaCl(aq)+AgNO3(aq)AgCl(s)+NaNO3(aq)

9.36 Define the term calibration.

Principles of Heat Flow Titanium is a metal used in jet engines. Its specific heat is 0.523 J/g C. If S.SS g of titanium absorb 4.78 J, what is the change in temperature?

Although the gas used in an oxyacetylene torch (Figure 5.7) is essentially pure acetylene, the heat produced by combustion of one mole of acetylene in such a torch is likely not equal to the enthalpy of combustion of acetylene listed in Table 5.2. Considering the conditions for which the tabulated data are reported, suggest an explanation.

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