Chemistry
Chemistry, 28.11.2019 02:31, coollid876

Ahorizontal cylinder equipped with a frictionless piston contains 785 cm3 of steam at 400 k and 125 kpa pressure. a total of 83.8 j of heat istransferred to the steam, causing the steam temperature and steamvolume to rise at constant pressure (125 kpa). the specific enthalpy (in j/mol) of steam at 125 kpa varies with temperature as 34980+35.5t (where temperature t is in k). taking the steam as the system, formulatethe first law of thermodynamics. then calculate

a) find steam temperture in k

b)final cylinder volume

c) work done by the steam

d) change in internal energyof the steam in j

answer
Answers: 3

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Ahorizontal cylinder equipped with a frictionless piston contains 785 cm3 of steam at 400 k and 125...

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