Which equation represents the atomization of iodine?
Correct answer: B. 1/2 I2(s)→I(g)
- A. 1/2 I(sp)→ I(l)
- B. 1/2 I2(s)→I(g)
- C. I2(l)→2l(g)
- D. I2(g)→2l(g)
Explanation
The standard enthalpy of atomization of an element is the amount of heat absorbed when one mole of gaseous atoms are formed from the element under standard conditions i 298K and one-atmosphere pressure.Examples:The standard enthalpy of atomization of hydrogen is given below(i) ½ H2(g) → H(g) ΔH:-+218kJmol(ii) ½ l2(s) → l(g) ΔHat =+ve
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
Practise Thermochemistry and Energetics of Chemical Reactions
728 free Thermochemistry and Energetics of Chemical Reactions MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.