If the pressure is reported as #750mmHg#, what is the pressure in atmospheres?

Question

1994 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-04-12T07:35:53

#1# #atm# #-=# #760# #mm# #Hg#

It makes sense to preconvert the pressure measurement ot atmospheres. So #P_1# #=# #(750*mm*Hg)/(760mm*Hg*atm^-1)# #=# #??# #atm#

Since amount of gas is constant, use the combined gas law #(P_1V_1)/T_1# #=# #(P_2V_2)/T_2#, and solve for #V_2#.

You are only justified in quoting an answer to 1 decimal place, as this was the accuracy of the initial conditions.

If the pressure is reported as #750*mm*Hg#, what is the pressure in atmospheres?