Question

For reaction $H - H$, the signs of $Br - Br$ and $HBr$ respectively are.

• A. +, –
• B. +, +
• C. –, –
• D. –, +

Answer 1

Answer: (C)

–, –

Answer 2

Because solid → solid,$H_{2}O(l) \rightarrow H_{2}O(g);P = 1atm$ is same and $T = 373K$ is –ve.