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
Answers: 3
Chemistry, 21.06.2019 23:00, dice50
When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )
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The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.
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Chemistry, 23.06.2019 06:30, ayoismeisjjjjuan
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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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