which is heavier,HOT water or COLD water? pls give explanation Thanks


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Question Number 13040 by chux last updated on 12/May/17

$which is heavier, HOT water or$ $COLD water ? pls give explanation$ $Thanks$
	Answered by ajfour last updated on 12/May/17

	$w a t e r a t 4 ° C i s d e n s e r t h a n w a t e r$ $a t b e l o w 4 ° C o r a b o v e 4 ° C .$ $i n t e r m o l e c u l a r f o r c e s v a r y w i t h$ $d i s t a n c e b e t w e e n m o l e c u l e s a s$ $t e m p e r a t u r e c h a n g e s i n a m a n n e r$ $t h a t i t i s m o s t d e n s e a t 4 ° C .$
	Commented by chux last updated on 12/May/17

	$does that mean hot water is heavier .$
	Commented by ajfour last updated on 12/May/17

	$c o l d w a t e r i s h e a v i e r . W h e n w e$ $b o i l w a t e r, w a t e r t h a t b e c o m e s$ $h o t r i s e s a n d c o l d w a t e r a b o v e$ $c o m e s t o t h e b o t t o m o f t h e v e s s e l$ $w h i c h n o w g e t s h e a t e d a n d r i s e s .$ $T h i s i s c a l l e d h e a t t r a n f e r t h r o u g h$ $c o n v e c t i o n .$
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