increasing the temperature of the reaction The equilibrium shifts in the direction of reactants. The equilibrium shifts in the direction of products. The equilibrium does not change. Submit Request Answer Part B decreasing the volume of the reaction container O The equilibrium shifts in the direction of products. The equilibrium shifts in the direction of reactants. The equilibrium does not change. Submit Request Answer Part C adding a catalyst The equilibrium shifts in the direction of products. O The equilibrium shifts in the direction of reactants. O The equilibrium does not change. Submit Request Answer Part D adding more Na(g) The equilibrium shifts in the direction of reactants. The equilibrium shifts in the direction of products. O The equilibrium does not change.

Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react to form ammonia: N₂(g) + 3H₂(g) 2 NH3(g) In the second step, ammonia and oxygen react to form nitric oxide and water: 4 NH3(g) + 50₂(g) → 4 NO(g) + 6 H₂O(g) ΔΗ = - 92. kJ kJ Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ. X AH = -905. kJ

Given the following thermochemical equations: 2 OF2 (g) →→→ 02 (g) + 2 F2 (g) 2 CIF (g) + O2 (g) → C120 (g) + OF2 (g) CIF 3 (g) + O2 (g) → Cl20 (g) + 3/2 OF2 (g) AH = -49.4 kJ AH = +205.6 kJ AH = +266.7 kJ Calculate the enthalpy change (in kJ) for this reaction: CIF (g) + F2 (g) → CIF3 (g) Show your complete solution. Express your answer in two decimal places.

When methanol, CH, OH, is burned in the presence of oxygen gas, O₂, a large amount of heat energy is released. For this reason, it is often used as a fuel in high performance racing cars. The combustion of methanol has the balanced, thermochemical equation CH₂OH(g) + O₂(g) → CO₂(g) + 2 H₂O(1) AH = -764 kJ How much methanol, in grams, must be burned to produce 983 kJ of heat? mass: g

Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react to form ammonia: N₂(g) + 3 H₂(g) 2NH,(9) In the second step, ammonia and oxygen react to form nitric oxide and water: 4NH3(g) + 5O₂(g) 4 NO(g) + 6H₂O(g) ΔΗ=-905. kJ Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ. kJ ΔΗ= -92. kJ X

The following thermochemical equation is for the reaction of carbon dioxide(g) with hydrogen (g) to form acetylene(g) (C₂H₂) and water(g). 2CO₂(g) + 5H₂(g)→→→→→→ C₂H₂(g) + 4H₂O(g) ΔΗ = 46.5 kJ When 10.9 grams of carbon dioxide (g) react with excess hydrogen (g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.

Coffee cup calorimetry was used to determine the enthalpy of solution of lithium iodide (LiI): A) First, the coffee cup was calibrated. 50.0 mL of water (s=4.184J/g×0 C) was heated to 95.50C and mixed with 50.0 mL of  cool water at 22.30 C. The temperature of the contents of the coffee cup stabilized at 49.40 C. Determine the heat capacity of the coffee cup. B) Next, the enthalpy of solution of lithium iodide (LiI) was determined. 0.0g of solid lithium iodide was added to 100mL of water at 23.20 C in the coffee cup, and the temperature increased to 32.10 C. Calculate the enthalpy of the solution of lithium iodide.

In one box of nails, there are 75 iron nails weighing 0.280 lblb . The density of iron is 7.86 g/cm3g/cm3. The specific heat of iron is 0.452 J/g∘CJ/g∘C. The melting point of iron is 1535 ∘C∘C. A)How much heat, in joules, must be added to the nails in the box to raise their temperature from 16 ∘C∘C to 123 ∘C∘C? B)How much heat, in joules, is required to heat one nail from 31 ∘C∘C to its melting point?

You are given the following data: H₂(g) 2H (g) Br₂(g) → 2 Br (g) H₂(g) + Br₂(g) 1 kJ mol → → 2 HBr (g) Calculate AH° for the reaction. H(g) + Br(g) HBr (g) Be sure your answer has the correct number of significant digits. x10 ΔΗ° = 436.4 X ΔΗ° = 192.5 ΔΗ° = - 72.4 kJ mol kJ mol kJ mol

The conversion of sulfur dioxide to sulfur trioxide is exothermic: SO2 (g) + ½ O2 (g) → SO3 (g) ΔH°rxn = ??? A certain exothermic reaction occurs in a coffee cup calorimeter that contains 425 mL of water. When the reaction reaches completion, the temperature of the water has increased by 2.37°C. If 3.47 g of SO3 are produced in the reaction, what is ΔH°rxn?