Study the reaction. 2HCl (g)+I2 (s)⇌2HI (g)+Cl2 (g)
When the reaction is at equilibrium, some amount of HI is added. The system then reaches equilibrium again.

How does the concentration of Cl2 change compared to the first equilibrium?

The concentration is higher.

The concentration is lower.

The concentration is zero.

The concentration is the same.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

d.) circle motion requires a force to give it a centripetal acceleration.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.