- #1
AmirWG
- 16
- 3
if we use a water manometer we get the pressure of the gas in manometer by using this forumla :
Pgas = Patmosphere ± ρgh
and if we use the a mercury manometer we use this formula instead :
Pgas = Patmosphere ± h
and here's my question :
why cannot we use the first formula in both of them , realistically we can get the same results if use the first formula in case of mercury manometer
Pgas = Patmosphere ± ρgh
and if we use the a mercury manometer we use this formula instead :
Pgas = Patmosphere ± h
and here's my question :
why cannot we use the first formula in both of them , realistically we can get the same results if use the first formula in case of mercury manometer