( that ( ( arises ( from ( changing ( ( the composition ) ( of ( ( the system ) ( at ( constant ( ( temperature and ) pressure ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT that)) (VP (VBZ arises) (PP (IN from) (S (VP (VBG changing) (NP (NP (DT the) (NN composition)) (PP (IN of) (NP (NP (DT the) (NN system)) (PP (IN at) (NP (JJ constant) (NN temperature) (CC and) (NN pressure)))))))))) (. .)))
that arises from changing the composition of the system at constant temperature and pressure.
(ROOT (S (PP (IN During) (NP (NN phase) (NN change))) (, ,) (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (DT a) (NN system)))) (VP (VBZ remains) (ADJP (JJ constant))) (. .)))