Question 925: Thermodynamics & KTG

Question

The volume occupied by the molecules contained in 4.5 kg water at STP, if the intermolecular forces vanish away is

Accepted Answer

From ideal gas equation
$PV = nRT$
$\left[ {n = {{mass\,of\,water} \over {mol.\,wt.}} = {{4.5 	imes {{10}^3}} \over {18}}} ight]$
$V = {{nRT} \over P}$
At $STP \Rightarrow T = 273\,K$
$P = {10^5}$ N/m
2
$V = {{4.5 	imes {{10}^3}} \over {18}} 	imes {{8.3 	imes 273} \over {{{10}^5}}} = 5.66$ m
3

Answer

5.6 $	imes$ 10
6
m
3

Answer

5.6 $	imes$ 10
3
m
3

Answer

5.6 $	imes$ 10
$-$3
m
3

Answer

5.6 m
3

Thermodynamics & KTG

The volume occupied by the molecules contained in 4.5 kg water at STP, if the intermolecular forces vanish away is

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