( ( This principle ) ( ( is ( ( the basis ) ( for ( ( ( the calorimeter ) , ) ( ( a device ) ( used ( to ( ( determine ( ( the amount ) ( of heat ) ) ) ( in ( a ( chemical reaction ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN principle)) (VP (VBZ is) (NP (NP (DT the) (NN basis)) (PP (IN for) (NP (NP (DT the) (NN calorimeter)) (, ,) (NP (NP (DT a) (NN device)) (VP (VBN used) (S (VP (TO to) (VP (VB determine) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN heat)))) (PP (IN in) (NP (DT a) (NN chemical) (NN reaction)))))))))))) (. .)))
This principle is the basis for the calorimeter, a device used to determine the amount of heat in a chemical reaction.
(ROOT (S (NP (DT A) (NN calorimeter)) (VP (VBZ is) (NP (NP (DT a) (NN device)) (VP (VBN used) (S (VP (TO to) (VP (VB measure) (NP (NN temperature) (NNS changes)) (PP (IN during) (NP (NP (NN chemical) (NNS processes)) (VP (VBN called)))))))))) (. .)))