Consider the following reaction in the vessel with a movable piston. X ( g ) + Y ( g ) → Z ( s )For this reaction, △ u = 286 J, the piston moves up, and the system absorbs 388 J of heat from its surroundings.(a) Does the system do work? (b) How much work?

Question

Consider the following reaction in the vessel with a movable piston.  X  (  g  )  +  Y  (  g  )  →  Z  (  s  )For this reaction,   △  u  =  286     J, the piston moves up, and the system absorbs 388 J of heat from its surroundings.(a) Does the system do work? (b) How much work?

grocbyntza · Accepted Answer

according to first law of thermodynamics  △  U  =  Q  +  Where   △  Uis channge in total internal energy of the systemQ is heat absorbed or released  by system W is work done on or by the system given that   △  U  =  286     J    Q  =  388     J  W  =  △  U  −  Q    W  =  286     J  −  388     J    W  =  −  102     Jthus(a) work is done by the system(b) value of work (W)=102 J

Consider the following reaction in the vessel with a movable piston. X (g) + Y (g) → Z (s) For this reaction, ΔU = 286 J, the piston moves up, and the system absorbs 388 J of heat from its surroundings. (a) Does the system do work? (b) How much work?

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