Question

which of the formula is the dry ice? (A) co²(g) (B) co²(x) (C) co²(s) (D) co²(aq)​

Answer 1

co²(s)

hope it helps you

Answer 2

Both ΔH and ΔS are positive

This reaction is known as sublimation of dry ice. ΔH is positive as it takes up energy when it sublimes.

Dry ice is more ordered arrangement as compared to carbon dioxide gas. So, disorder or randomness increases. Thus, ΔS is also positive.

Both ΔH and ΔS are positive.