Question

For the reaction $CaC{O}_3\left(s\right)\leftrightharpoons CaO\left(s\right)+C{O}_2\left(g\right),$ the pressure of $C{O}_2\left(g\right)$ depends on

• A. the mass of $CaC{O}_3\left(s\right)$
• B. The mass of $CaO\left(s\right)$
• C. the masses of both $CaC{O}_3\left(s\right)$ and CaO(s)
• D. temperature of the system

Answer 1

The correct option is D temperature of the system

$CaC{O}_3\leftrightharpoons CaO\left(s\right)+C{O}_2\left(g\right)$
$K_p=\left(P_{C{O}_2}\right)$
$\left(P_{C{O}_2}\right)$ is equal to equilibrium constant which only change with change in only $K_P$
But equilibrium constant only depends on temperature.