Consider the following statements about thermal conductivity:1) Thermal conductivity decreases with increasing molecular weight2) Thermal conductivity of non-metallic liquids generally decreases with increasing temperature3) Thermal conductivity of gases and liquids is generally smaller than that of solidsWhich of the above statements are correct?

Consider the following statements about thermal conductivity:1) Therma

1.	Consider the following statements about thermal conductivity:1) Thermal conductivity decreases with increasing molecular weight2) Thermal conductivity of non-metallic liquids generally decreases with increasing temperature3) Thermal conductivity of gases and liquids is generally smaller than that of solidsWhich of the above statements are correct?
A.	1 and 2 only
B.	1 and 3 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» E.

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