Question

which reaction is representing the standard ΔH°atom
a--1/2H2[g]→ H2[g]
b--1/2Br2[liq] → Br[g]
c--I2[s] → I[g]

Answer 1

Answer:

So here you first know the definition of ∆H° of the compound.. It means the formation of 1 mole of the compound using the element in the most stable form.

by watching the option the correct option is b part.

Remember .- formation of 1 MOLE from the element in the most stable form . this year this concept is asked in Jee Advanced. ..

Happy learning.

Answer 2

hope this will help you