Why is CO2 a gas at room temperature,while SiO2is a solid??? please an

1.	Why is CO2 a gas at room temperature,while SiO2is a solid??? please answer fast and thank you.
Answer» $\huge\red{\underline{{\boxed{\textbf{Answer}}}}}$ CO2 exists as a discrete single molecule as O=C=O. and due to only van der waal's interactions the intermolecular FORCES are not strong ENOUGH, allowing the molecules move about freely, hence it exists as a gas. SiO2 however actuall exists as a POLYMERIC network as O-Si-O-Si......., here each Si atom is bonded to O atom by a single bond and also to 2 other O atoms MAKING it strongly bonded. Due to this the intermolecular forces are tremendously high and molecules cannot move about freely, Hence SiO2 is a solid.

Why is CO2 a gas at room temperature,while SiO2is a solid??? please answer fast and thank you.

Answer»

$\huge\red{\underline{{\boxed{\textbf{Answer}}}}}$

CO2 exists as a discrete single molecule as O=C=O. and due to only van der waal's interactions the intermolecular FORCES are not strong ENOUGH, allowing the molecules move about freely, hence it exists as a gas.

SiO2 however actuall exists as a POLYMERIC network as O-Si-O-Si......., here each Si atom is bonded to O atom by a single bond and also to 2 other O atoms MAKING it strongly bonded. Due to this the intermolecular forces are tremendously high and molecules cannot move about freely, Hence SiO2 is a solid.

Discussion

No Comment Found

Related InterviewSolutions

1)formula of the compound between A and C ?Pls help......
200 ce of an aqueous solution contains 1.26 gms of a polymer. The osmotic pressuof such solution at 300 K is found to be 2.57x10 bar. Calculate the molar massthe polymer
What is a homologoues series.List any four characteristics ofhomologués series.
The melting and boiling point of Carbonbarevery low. Why?
Fecl³+H²S=2Fecl2 +2HCl+s ऑक्सीकरण तथा अपचयन ज्ञात किजिए
Fecl³+H²S=2Fecl2 +2HCl ऑक्सीकरण तथा अपचयन ज्ञात किजिए
Hex-1,3 dien-5-yne what is the structure formula
For multiple electronic species 3d and 4p are degenerate orbitals true or false
For multiple electronic species 3d and 4p are degenerate orbitals
3. (a) why doesCarbon form compounds mainlyby covalent bondlist any 4reasons for carbon formingvery large no of compounds .