The weight of 350ml of a diatomic gas atis 0°C and 2atm pressure is 1 gram. What is the weight of 1 atom ?
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we know,
gases formula,
PV =nRT
here,
P = 2atm
V = 350ml = 0.35L
T =0°C = 273 K
so,
2*0.35 =n* 0.082 *273
n = 0.7/0.082*273
= 0.03126
n = Given wt/atomic wt
0.3126 = 1/atomic wt
atomic wt = 1/0.3126 = 3.1989 g/mol
so, weight of 1 atom = 3.1989/6.023*10²³
= 0.5311 *10-²³ g
= 5.311 *10^-27 kg
gases formula,
PV =nRT
here,
P = 2atm
V = 350ml = 0.35L
T =0°C = 273 K
so,
2*0.35 =n* 0.082 *273
n = 0.7/0.082*273
= 0.03126
n = Given wt/atomic wt
0.3126 = 1/atomic wt
atomic wt = 1/0.3126 = 3.1989 g/mol
so, weight of 1 atom = 3.1989/6.023*10²³
= 0.5311 *10-²³ g
= 5.311 *10^-27 kg
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