Consider the following reaction:
6NO(g) + 4NH3(g) → 5N2(g) + 6H2O(g) ; ΔH = -1805 kJ
Now answer the following two questions.
1.Which condition will release more heat?
A. Combining 5.0 g of NO with excess NH4
or
B. Combining 2.5 g of NH3 with excess NO
2. How much heat will be released from your answer in question 1?
Consider the following reaction: 6NO(g) + 4NH3(g) → 5N2(g) + 6H2O(g) ; ΔH = -1805 kJ...
Consider the following reaction: 4NH3(g) + 502(g) – 4NO(g) + 6H2O(g); AH = -906 kJ Now answer the following two questions. 1. Which condition will release more heat? A. Combining 4.0 g of NH3 with excess O2 or B. Combining 5.0 g of O2 with excess NH3 2. How much heat will be released from your answer in question 1? Condition will release more heat and the value of this heat energy is
Consider the following equilibrium reaction: 4NH3(g) + 5O2(g) <---> 4NO(g) + 6H2O(g) Heat = -904.4 kJ How does each of the following changes affect the yield of NO at equilibrium? Answer increase, decrease, or no change. a. increase [NH3] b. Increase [H2O] c. Decrease [O2] d. Decrease the volume of the container in which the raction occurs. e. Add a catalyst f. Increase temperature
2C2H6 (g) + 7O2 (g) → 4CO2(g) + 6H2O (g) ΔH = -1560 kJ How much heat (in kJ) is released if 17.9 g of ethane ( 30.07 g/mol) undergoes combustion? (Give your answer as a positive number, since you cannot release negative energy.)
Consider the following reaction: 4NH3 + 502 --> 4NO + 6H2O. In an experiment, 3.25 g of NH3 are allowed to react with 3.50 g of 02. Only 0.490 g of NO is actually produced. What is the percent yield of NO?
Ammonia reacts with oxygen according to the equation: 4NH3(g) +502(g) → 4NO(g) + 6H2O(g) AH.,.. = 4906 kJ Calculate the heat (in kJ) associated with the complete reaction of 355 g of NH3. Express your answer with the appropriate units. Value Units
1. Ammonia reacts with oxygen according to the equation 4NH3(g)+5O2(g)→4NO(g)+6H2O(g),ΔHrxn=−906 kJ Calculate the heat (in kJ) associated with the complete reaction of 155 g of NH3. 2. What mass of butane in grams is necessary to produce 1.5×103 kJ of heat? What mass of CO2 is produced? Assume the reaction to be as follows: C4H10(g)+132O2(g)→4CO2(g)+5H2O(g),ΔHrxn=−2658 kJ
Consider the two reactions. 2NH3(g)+3N2O(g)4NH3(g)+3O2(g)⟶4N2(g)+3H2O(l)⟶2N2(g)+6H2O(l) Δ?∘=−1010 kJΔ?∘=1531 kJ2NH3(g)+3N2O(g)⟶4N2(g)+3H2O(l) ΔH∘=−1010 kJ4NH3(g)+3O2(g)⟶2N2(g)+6H2O(l) ΔH∘=1531 kJ Using these two reactions, calculate and enter the enthalpy change for the reaction below. N2(g)+12O2(g)⟶N2O(g)N2(g)+12O2(g)⟶N2O(g)
Complete the following: a. Using standard heats of formation, determine ΔH for the following reaction: 4NH3(g) + 5O2(g) →4NO(g) + 6H2O(l) b. Estimate the difference between ΔHreaction and ΔEreaction (in kJ/mol) for the reaction: C40H80(s) + 60O2(g) →40CO2(g) + 40H2O(s) at 298 K
How many grams of N2 are produced from 100.0 g of NH3 according to the following reaction? 4NH3 + 6NO ------ > 5N2 + 6H20 Calculate the mass (g) of H2O needed to produce 150 g of Mg(OH)2 according to the equation: Mg2N2 + 6H2O ----- > 3Mg(OH)2 + 2NH3
Consider the exothermic reaction 2C2H6(g)+7O2(g)→4CO2(g)+6H2O(g) Calculate the standard heat of reaction, or ΔH∘rxn, for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero. Reactant or product ΔH∘f (kJ/mol) C2H6(g) -84.7 CO2(g) -393.5 H2O(g) -241.8 Express your answer to four significant figures and include the appropriate units.