Probabil ai rezolvat deja pe baza relatiilor date. Dar vad ca nu rezolva nimeni
100mmHg=?
Stim ca 760mmHg=1atm=101325Pa
Atunci 100mmHg=x
Conform reguli de trei simpla:
x=(101325×100)/760=
Deci:
100mmHg=13332,2Pa
5atm=?
Stim ca 1atm=101325Pa
5atm=5×101325=506625Pa
2,6hPa=2,6×100Pa=260Pa
1,12bar=?
Stim ca 1bar=10⁵Pa
Atunci, 1,12bar=1,12×10⁵Pa=112×10³Pa
250torr=?
Stim ca 1torr=1mmHg
Dar 760mmHg=1atm ⇒1mmHg=1atm/760
Iar 1 atm=101325Pa
Atunci 1mmHg=101325/760Pa=133,32Pa
50mapa=?
Stim ca 1mmapa=9,80665Pa
50m=5×10⁴mm
Atunci 50mapa=5×10⁴mmapa=5×10⁴×9,80665Pa=490332,5Pa
