Resposta :
760 mmHg = 76 cmHg = 1 atm
1 atm -------- 76 cm Hg
x----------------- 70
x = 0,92 atm
T1= - 20 + 273 = 253 K
T2 = 20 + 273 = 293 K
[tex] \frac{P1}{T1} = \frac{P2}{T2} [/tex]
[tex] \frac{0,92}{253} = \frac{P2}{293} 0,92.293 = 253. P2 P2= 1,06 atm [/tex]
1 atm -------- 76 cm Hg
x----------------- 70
x = 0,92 atm
T1= - 20 + 273 = 253 K
T2 = 20 + 273 = 293 K
[tex] \frac{P1}{T1} = \frac{P2}{T2} [/tex]
[tex] \frac{0,92}{253} = \frac{P2}{293} 0,92.293 = 253. P2 P2= 1,06 atm [/tex]