Fill in the Blanks For the reaction 4 H2(g) + CO2(g) - CH4(g) + 2 H2O(g)...
4 H2(g) + CO2(g) → CH4(g) + 2 H20(g) AH=-165 kJ a. Is the reaction endothermic or exothermic? exothermic b. How many kJ of heat are released when 5.0 moles of CO2 react with excess H2? 3300 number not words.) c. How many kJ of heat are liberated when 12.9 g of H2 react with excess CO2? 264 (Enter a number not words.) [] Full
For the reaction 4 H(g) + CO(g) → CH(g) + 2 HO(g) H= -165 kJ a. Is the reaction endothermic or exothermic? b. How many kJ of heat are released when 5.0 moles of CO react with excess H? c. How many kJ of heat are liberated when 12.9 g of H react with excess CO? (Enter a number not words.)
Fill in the Blanks Given this balanced chemical reaction, 4 HCl(g) + O2(g) +2H20(0) + 2 C12(e) AH reaction=-202.4 kJ (give answer in decimal notation, i.e. 234,000) a. How many J (joules) of heat are released when 2.50 moles of HCl react with excess oxygen gas? b. How many moles of HCl are there in 89.3 g of HCl? c. How many kJ of heat are released when 89.3 g of HC react with excess O2? (Enter your answers as...
The thermochemical equation of combustion of methane is: CH4(g) + 2O2(g) → CO2(g) + 2 H2O(l) ΔΗ =-890.3 kJ 1. Calculate the AH when 5.00 g CH4 react with excess of oxygen. 2. Calculate AH when 2L CH4 at 49 °C and 782 mmHg react with an excess of oxygen 3. Calculate AH when 2L CH4 react with L O2 in a reaction vessel kept at 49 °C and 782 mmHg.
A chemist measures the energy change AH during the following reaction: CH4(9)+202(9) + CO2(9)+2H2O(1) AH= -882. kJ Use the information to answer the following questions. This reaction is... ОО endothermic. exothermic. Yes, absorbed. Yes, released. Suppose 33.5 g of CH4 react. X 5 ? Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer...
Use the combustion of methane for the following question: CH4 (g) + O2 (g) → CO2 (g) + H2O (l) ∆H = -890 kJ/mol A)Is the reaction exothermic or endothermic? B)If I combust 2 mol of methane, how much heat is absorbed or released - use the appropriate sign to indicate in your answer. C) If I combust 12.5 g of methane, how much energy in kJ is absorbed or released? Use the appropriate sign in your answer.
Consider the reaction below. CH4 (g) + 2 H2O (g) ⇌ CO2 (g) + 4 H2 (g) The equilibrium concentrations of the four components are listed below. Calculate the value of Keq for this reaction. Round your final answer to two significant figures. [CH4] = 0.049 M [H2O] = 0.048 M [CO2] = 0.0090 M [H2] = 0.0036 M
Consider the steps in coal gasification: C(coal) + H2O(g) - CO(g) + H2(g) Hºrn = 129.7 kJ CO(g) + H2O(g) - CO2(g) + H2(g) AH rxn = -41 kJ CO(g) + 3H2(g) → CH4(g) + H2O(g) AH'rxn=-206 kJ Calculate the heat of reaction, AH rxn, for overall reaction for the production of methane, CH4.
Check my work Consider the steps in coal gasification: Clcoal) + H2O(g) + CO(g) + H2(9) AH rxn = 129.7 kJ CO(g) + H2O(g) + CO2(g) + H2(g) AH®rxn = -41 kJ CO(g) + 3H2(g) + CH4(9) + H2O(g) AH rxn--206 kJ Calculate the heat of reaction, AH rxn, for overall reaction for the production of methane, CH4. 118 kJ
Consider the combustion reaction of propane: CzHg(s) + 5O2(g) + CO2(g) + 4 H2O(g), where AH=-2223 kJ. If 6.70 X 104 kJ of energy is released in the reaction how many moles of water are formed? 0 120.6 moles There is no correct answer O 30.14 moles 0 90.4 moles O 15.07 moles