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