Răspuns :
n = ? moli
V = 10L
t = 47°C
p = 2 atm
T(°K) = 273+t°C = 273+47 = 320 K
pV=nRT => n = pV/RT = (2*10)/(0,082*320) = 0,762 moli N2
V = 10L
t = 47°C
p = 2 atm
T(°K) = 273+t°C = 273+47 = 320 K
pV=nRT => n = pV/RT = (2*10)/(0,082*320) = 0,762 moli N2
Notam cu ''n'' numarul de moli.
V=10 L
t=47°C
p=2 atm
n=?
Pentru inceput transformam temperatura in grade Kelvin:
T=t+273
T=47+273=320 K
Stim ca ecuatia de stare a gazelor este:
pV=nRT
Inseamna ca:
n=pV/RT=(2*10)/(0,082*320)=20/26,24=0,76 moli N2
Daca vrei sa transformi in grame: m=n*M=0,76*28=21,34 grame N2.
V=10 L
t=47°C
p=2 atm
n=?
Pentru inceput transformam temperatura in grade Kelvin:
T=t+273
T=47+273=320 K
Stim ca ecuatia de stare a gazelor este:
pV=nRT
Inseamna ca:
n=pV/RT=(2*10)/(0,082*320)=20/26,24=0,76 moli N2
Daca vrei sa transformi in grame: m=n*M=0,76*28=21,34 grame N2.