Classify each chemical reaction as endothermic or exothermic. Endothermic reactions Exothermic reactions 2H2(g)+O2(g)⟶2H2O(l)+heat 2CO2(g)+heat⟶2CO(g)+O2(g) 2C2H2(g)+5O2(g)⟶4CO2(g)+2H2O(l)+heat N2(g)+2O2(g)+heat⟶2NO2(g)

Question

Question

Classify each chemical reaction as endothermic or exothermic.

Endothermic reactions Exothermic reactions

2H2(g)+O2(g)⟶2H2O(l)+heat

2CO2(g)+heat⟶2CO(g)+O2(g)

2C2H2(g)+5O2(g)⟶4CO2(g)+2H2O(l)+heat

N2(g)+2O2(g)+heat⟶2NO2(g)

science chemistry

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

Given the following data: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ΔH = -2600 kJ C2H2(g)...

Given the following data: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ΔH = -2600 kJ C2H2(g) + 2H2(g) → C2H6(g) ΔH = -312 kJ 2H2(g) + O2(g) → 2H2O(l) ΔH = -572 kJ Find the ΔH of the following reaction: 4CO2(g) + 6H2O(l) → 2C2H6(g) + 7O2(g)
Find ∆H◦ of the reaction 2C2H2(g) + 5O2(g) = 4CO2(g) + 2H2O(g), as it is written,...

Find ∆H◦ of the reaction 2C2H2(g) + 5O2(g) = 4CO2(g) + 2H2O(g), as it is written, given the following: 2C(s) + H2(g) = C2H2(g), ∆H◦ = +227.4 kJ, 2H2(g) + O2(g) = 2H2O(g), ∆H◦ = −483.6 kJ, C(s) + O2(g) = CO2(g), ∆H◦ = −393.5 kJ.
Use the set of three reactions shown below to answer the questions that follow. 2NO(g) +...

Use the set of three reactions shown below to answer the questions that follow. 2NO(g) + O2(g) → 2NO2(g) ΔH = -116 kJ 2N2(g) + 5O2(g) + 2H2O(l) → 4HNO3(aq) ΔH = -256 kJ N2(g) + O2(g) → 2NO(g) ΔH = +183 kJ If 27.9 g of NO g is reacted with excess oxygen, how much heat energy is produced? What mass of liquid water will be consumed during the production of 33900 J of energy assuming that there is...

At 1565K, the equilibrium constant for the reactions: (1) 2H2O(g) <----> 2H2(g) +O2(g) and (2) 2CO2(g)...

At 1565K, the equilibrium constant for the reactions: (1) 2H2O(g) <----> 2H2(g) +O2(g) and (2) 2CO2(g) <----> 2CO(g) +O2(g) are 1.6*10^-11 and 1.3*10^-10, respectively. a. what is the value of the equilibrium constant for the reaction: (3) CO2(g) + H2(g) <----> H2O(g) + CO(g) at this temperature? b. demonstrate how the calculations of equilibrium constants matches the calculations of dG0r when adding two reactions or more ; determine dG0r for reactions (1) and (2) and use these values in order...
Calculate ΔG0 for the following reactions at 25oC. (a) N2(g) + O2(g) → 2NO(g) ΔG0 =...

Calculate ΔG0 for the following reactions at 25oC. (a) N2(g) + O2(g) → 2NO(g) ΔG0 = kJ/mol (b) H2O(l) → H2O(g) ΔG0 = kJ/mol (c) 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ΔG0 = kJ/mol
Calculate the heat of reaction in (kJ) for the following reaction: 2CO(g) + O2(g) --> 2CO2(g)...

Calculate the heat of reaction in (kJ) for the following reaction: 2CO(g) + O2(g) --> 2CO2(g) given the following data: C + 1/2O2 --> CO(g) delta H= -110.5 KJ/mol C + O2(g) --> CO2(g) delta H= -393.5 KJ/ mol

2 pts Question 14 Consider the reaction 2H2(g) + O2(g) → 2H2O(l) AH = -286 kJ...

2 pts Question 14 Consider the reaction 2H2(g) + O2(g) → 2H2O(l) AH = -286 kJ Which of the following is true? The reaction is exothermic The reaction is endothermic The reaction is neutral with respect to energy change Heat is absorbed by the system Information is not enough to tell about the energy change
Hydrogen is burned according to the following chemical reaction: 2H2(g) + O2(g) → 2H2O(l) ∆Hrxn =...

Hydrogen is burned according to the following chemical reaction: 2H2(g) + O2(g) → 2H2O(l) ∆Hrxn = -286 kJ Given 100 g of H2 and excess O2, how much heat is released?
Given the reaction: N2(g) +2O2(g) ⇌ 2NO2(g) The forward reaction is endothermic. Determine which of the...

Given the reaction: N2(g) +2O2(g) ⇌ 2NO2(g) The forward reaction is endothermic. Determine which of the following changes would result in more reactant being produced. I. Increase NO2 II. Increase O2 III. Add a catalyst IV. Increase the temperature V. Decrease the pressure A. I and V B. II, III, and V C. II and IV ' D. All

10) Use the following decomposition reaction to answer the following questions: 2H2O(g) + heat - 2H2(g)...

10) Use the following decomposition reaction to answer the following questions: 2H2O(g) + heat - 2H2(g) + O2(g) a. Is this reaction Endothermic or Exothermic and how do you know?