Question

For the reaction,

$C\left(s\right)+O_2\left(g\right)\to C{O}_2\left(g\right);$

$\Delta n$ value is __________.

• A. Zero
• B. 1
• C. -1
• D. unpredictable

Answer 1

The correct option is A Zero

$C\left(s\right)+O_2\left(g\right)\to C{O}_2\left(g\right)$

$\Delta n_g=1-1$

$=0$

$=$ difference of moles of gaseous substances

Option A is correct.