( Similarly ( , ( ( if ( ( ideal ( gas molecules ) ) collide ) ) ( , ( ( the collisions ) ( ( ( ( are elastic ) , ) ( so ( ( no ( kinetic energy ) ) ( is lost ) ) ) ) . ) ) ) ) ) )
(ROOT (S (ADVP (RB Similarly)) (, ,) (SBAR (IN if) (S (NP (JJ ideal) (NN gas) (NNS molecules)) (VP (VBP collide)))) (, ,) (NP (DT the) (NNS collisions)) (VP (VBP are) (ADJP (JJ elastic)) (, ,) (SBAR (IN so) (S (NP (DT no) (JJ kinetic) (NN energy)) (VP (VBZ is) (VP (VBN lost)))))) (. .)))
Similarly, if ideal gas molecules collide, the collisions are elastic, so no kinetic energy is lost.
(ROOT (S (SBAR (IN Because) (S (NP (NNS collisions)) (VP (VBP are) (ADJP (JJ elastic))))) (, ,) (NP (NN energy)) (VP (MD can) (VP (VB be) (VP (VBN transferred) (PP (IN between) (NP (NNS molecules))) (PP (IN during) (NP (PRP them))))))))