Question

Va roooog ! Urgent ! Dau coroana

Answer 1

a)

PV = nRT

n = masa/miu

=> PVmiu = mRT

=> miu = mRT/PV

= 3,643x0,082(273+107)/4,5x1,25

=> miu = 20,18

daca este gaz monoatomic => gaz rar => Ne

b)

ro = masa/V = 3,643/4,5 = 0,81 g/dm3

c)

V = constant

n = m/miu = 3,643/20,18 = 0,18 moli

PV = nRT

=> P = nRT/V

= 0,18x0,082(273+2000)/4,5

= 7,46 atm