Figure below shows two paths that may be taken by a gas to go from a state A to a state C.
In process A B, 400 J of heat is added to the system and process B C, 100 J of heat is added to the system. The heat absorbed by the system in the process A C will be

Question

Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process A B, 400 J of heat is added to the system and process B C, 100 J of heat is added to the system. The heat absorbed by the system in the process A C will be

Infinity Learn · Accepted Answer

As initial and final points are same soΔ$$UABC=$$ΔUAC AB is isochoric process.  Δ$$WAB=0$$Δ$$QAB=$$Δ$$UAB=400$$ J BC is isobaric process.  Δ$$QBC=$$Δ$$UBC+$$Δ$$WBC100=$$Δ$$UBC+6$$×$$1044$$×$$10-3-2$$×$$10-3100=$$Δ$$UBC+12$$×$$10$$Δ$$UBC=100-120=-20$$ J As, Δ$$UABC=$$ΔUAC Δ$$UAB+$$Δ$$UBC=$$Δ$$QAC-$$Δ$$WAC400-20=$$Δ$$QAC-2$$×$$104$$×$$2$$×$$10-3+12$$×$$2$$×$$10-3$$×$$4$$×$$104380=$$Δ$$QAC-(40+40)$$,Δ$$QAC=380+80=460$$ J

Figure below shows two paths that may be taken by a gas to go from a state A to a state C.
In process A B, 400 J of heat is added to the system and process B C, 100 J of heat is added to the system. The heat absorbed by the system in the process A C will be

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Figure below shows two paths that may be taken by a gas to go from a state A to a state C.In process A B, 400 J of heat is added to the system and process B C, 100 J of heat is added to the system. The heat absorbed by the system in the process A C will be

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

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Figure below shows two paths that may be taken by a gas to go from a state A to a state C.
In process A B, 400 J of heat is added to the system and process B C, 100 J of heat is added to the system. The heat absorbed by the system in the process A C will be