Write one process where work is converted into heat and heat is converted into work.
(N/A) $1$. Work to Heat: In winter,when we rub our palms together,the mechanical work done in rubbing is converted into thermal energy (heat),which makes our palms feel warmer.
$2$. Heat to Work: In a steam engine,the thermal energy (heat) released from steam is used to perform mechanical work by pushing pistons,which in turn rotate the wheels of the train.
$2$. Heat to Work: In a steam engine,the thermal energy (heat) released from steam is used to perform mechanical work by pushing pistons,which in turn rotate the wheels of the train.
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