When exposed to uv light, chlorine and hydrogen gases explosively combine to form hydrogen chloride gas. assuming a sufficiently strong reaction vessel how much hcl (in atm) can be formed when hydrogen and chlorine are each at 5.0 atm (assume volume and temperature are constant)?

10 atm.

Explanation:

Given The equation in the balanced form

H2+ Cl2 ⇒2HCl

At constant pressure and volume

1 atm of H2 gives 2 atm of HCl

Therefore, 5 atm of H2 gives 5×2 = 10 atm of HCl.

Therefore, the pressure of HCl  formed = 10 atm.

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