write a sentence for the following reaction PCl5(s)=PCl3(s)+Cl2(g)

Solid phosphorus pentachloride yields phosphorus trichloride gas plus chlorine gas.

The solid PCl5 decomposes into solid PCl3 and gaseous Cl2.

Sure! Here's a sentence for the given reaction:

"When solid PCl5 is heated, it decomposes to form solid PCl3 and gaseous Cl2."