Which equation describes the standard enthalpy of formation of CH4 (g)? C(s. gra

Question

Which equation describes the standard enthalpy of formation of CH4 (g)? C(s. graphite) + 2H2(g) rightarrow CH4(g) C(s, graphite)+ 4H(g) rightarrow CH4(g) CH4(g) + 2O2 rightarrow CO2(g) + 2H2O(g) C(g) + 2H2(g) rightarrow CH4(g) What volume of oxygen gas is produced at 8 degree C and 0.950 atm from 21.8 kg of carbon dioxide and an excess of water via the overall photosynthetic reaction? 6CO2(g) + 6H2O(l) rightarrow C6H12O6(s) + 6O2(g) 2.33 times 104 L l.20 times l04L 343 L 12.0L. A metal cylinder contains equal molar quantities of He and Ar gasses at 273 K and 1.0 atm total pressure. Which statement is incorrect for this gas mixture? The total mass of the He atoms is less than that of the Ar atoms. The He atoms collide more frequently with the walls of the cylinder. He atoms and Ar atoms each exert partial pressures of 0.50 atm on the walls of the cylinder The average kinetic energy of the Ar atoms is greater than that of the He atoms.

Explanation / Answer

39) option A 40) no. of moles = 21.8 / 44 Use ideal gas law, PV = nRT V comes out to be 12.03 L Hence option D. 41) option B.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.