Question: Which statement is true about the melting temperature, Tm ? Tm is always higher than Tg . Tm is always lower than Tg . If

Which statement is true about the melting temperature, Tm?
Tm is always higher than Tg .
Tm is always lower than Tg .
If a polymer exhibits a Tg , then it must have a Tm.
If a polymer exhibits a Tm , then it is likely to have a Tg.
Tm can be determined by XRD.
Tm can be determined by DSC.
Tm is a characteristic feature of an amorphous polymer.
Which statement is true about the melting temperature, Tm? Tm is

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