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Question 19 3 pts The value of AH° for the reaction below is 5314 kJ. The...
Given the following reaction: 4C2H5Cl2 + 1302 +8CO2 + 10H20 + 4Cl2 AH = -2190 kJ What is the heat change in kJ if 62.2 g of Cl2 is produced? 35.64 kJ -480.17 kJ 140.64 kJ 480.20 kj ---340.54 kJ
For the reaction 2C4H10 (g) + 1302 (8) — 8CO2 (g) + 10H20 (g) AH° is -125 kJ/mol and AS is -253 J/K mol. This reaction is spontaneous at all temperatures spontaneous only at high temperature © spontaneous only at low temperature nonspontaneous at all temperatures None of the above
14. (4 pts.) Butane (C4H10) reacts with oxygen (O2) according to the reaction: 2C4H10(g)+1302 (g) 8CO2(g) +10H20 (l) A 4.00 L container is filled with 0.750 atm butane (C4H10). What pressure of O2 must be added to the container to react with butane? a. 137 pts anictdo noitssdsgnimoho eiadW To What would be the total pressure of the container after the O2 has been added? b.
1. Consider the following reaction. AH=+90.7 kj a. Is heat absorbed or evolved in the course of this reaction? b. Calculate the amount of heat (g) transferred (in k) when 1.60 g of CH,OH are decomposed by this reaction. 2. A sample of silver and a sample of water with equal masses undergo a temperature change. a. The heat capacity of silver is 0.24 J/g. C. How much energy (as heat) is required to raise the temperature of 300.0 g...
Question 25 2 pts Butane releases heat when it burns. 2C4H10(g) + 1302(g) → 8C02(g) + 10H2O(1) AHrxn=-5754 kJ How much heat would be released if 0.171 mol of butane (C4H10)is combusted? Your answer should have 3 significant figures. Question 26 2 pts Name 3 ions that have the condensed electron configuration equal to Ne. Input the answers with the symbol and charge with no space between-for example, H+ or Ba2+.
Question 25 2 pts Butane releases heat when it burns. 2C4H10(g) + 1302(g) → 8C02(g) + 10H2O(1) AHrxn=-5754 kJ How much heat would be released if 0.171 mol of butane (C4H10)is combusted? Your answer should have 3 significant figures. Question 26 2 pts Name 3 ions that have the condensed electron configuration equal to Ne. Input the answers with the symbol and charge with no space between-for example, H+ or Ba2+.
The value of AH for the reaction below is -1107 kJ: 2Ba(s) + O2 (g) - 2 BaO(s) What is the value of q in kJ when 3.300 mole of Ba (s) reacts completely with oxygen to form Bao (s)? O-63.50 1827 63.50 2435 1384
2. Calculate AH (expressed in kJ/mol) for the following reaction based on the thermochemical information given: Na +Crce → NaCl AH ? Nas) + 2Cl2(g) → Nap + Cle AH = 230 kJ/mol Nag) + Cl → Na(+ Cl® AH = 147 kJ/mol Na(s) + Cl2(e) → NaCl) AH = -411 kJ/mol 3. Consider the reaction: 2HCl) + Ba(OH)2(aq) → BaCl(aq) + 2 H200 AH--118 kJ/mol a. Calculate the heat produced when 700.0 mL of 0.500 M HCl is mixed...
Question 19 of 20 For a particular isomer of C.H,, the combustion reaction produces 5104.1 kJ of heat per mole of C.H,g(g) consumed, under 18* 18 standard conditions. 25 C,Hjg)+0,() 8 CO, (g)+9H,Og) AHn-5104.1 kJ/mol What is the standard enthalpy of formation of this isomer of C, H. rC,Hig(g)? AH; kJ/mol
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...