Which equation shows conservation of mass and energy for a reaction at 101.3 kpa and 298 k?

a. 2h2 (g) + o2 (g) 2h2o (g) + 483.6 kj

b. 2h2 (g) + o2 (g) 2h2o (l) + 285.8 kj

c. h2 (g) + o2 (g) h2o (g) + 483.6 kj

d. h2 (g) + o2 (g) h2o (l) + 285.8 kj?

Question

Chemistry

Picasso

21 July, 10:15

Which equation shows conservation of mass and energy for a reaction at 101.3 kpa and 298 k?

a. 2h2 (g) + o2 (g) 2h2o (g) + 483.6 kj

b. 2h2 (g) + o2 (g) 2h2o (l) + 285.8 kj

c. h2 (g) + o2 (g) h2o (g) + 483.6 kj

d. h2 (g) + o2 (g) h2o (l) + 285.8 kj?

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Answers (1)

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Wags · Answer 1

C and D are not correctly balanced so it is not show conservation of energy also for B the energy value is not correct it is not show conservation of mass and energy so the correct answer is A:

2 H₂ (g) + O₂ (g) → 2 H₂O (g) + 483.6 kJ

Which equation shows conservation of mass and energy for a reaction at 101.3 kpa and 298 k?a. 2h2 (g) + o2 (g) 2h2o (g) + 483.6 kjb. 2h2 (g) + o2 (g) 2h2o (l) + 285.8 kjc. h2 (g) + o2 (g) h2o (g) + 483.6 kjd. h2 (g) + o2 (g) h2o (l) + 285.8 kj?

Which equation shows conservation of mass and energy for a reaction at 101.3 kpa and 298 k?

a. 2h2 (g) + o2 (g) 2h2o (g) + 483.6 kj

b. 2h2 (g) + o2 (g) 2h2o (l) + 285.8 kj

c. h2 (g) + o2 (g) h2o (g) + 483.6 kj

d. h2 (g) + o2 (g) h2o (l) + 285.8 kj?