( Also ( , ( ( at ( constant pressure ) ) ( , ( volume ( ( expands ( as ( temperature ( is increased ) ) ) ) . ) ) ) ) ) )
(ROOT (S (ADVP (RB Also)) (, ,) (PP (IN at) (NP (JJ constant) (NN pressure))) (, ,) (NP (NN volume)) (VP (VBZ expands) (SBAR (IN as) (S (NP (NN temperature)) (VP (VBZ is) (VP (VBN increased)))))) (. .)))
Also, at constant pressure, volume expands as temperature is increased.
(ROOT (S (PP (IN As) (NP (NN temperature) (NNS increases))) (, ,) (NP (NN volume)) (VP (VBZ increases)) (. .)))