Which of the following statements best describes the first law of thermodynamics

ID: 553562 • Letter: W

Question

Which of the following statements best describes the first law of thermodynamics? Choose one or more:

A. Euniv = Esys + Esurr = 0

B. The work done by a system equals the work done on the surroundings.

C. Heat released by the system is absorbed by the surroundings.

D. Energy can be neither created nor destroyed, but it can change from one form to another.

E. The total energy of the universe is decreasing. F. E = Efinal – Einitial

G. The energy gained or lost by a system must equal the energy lost or gained by the surroundings.

H. The sum of all of the kinetic and potential energies of all of the components of a system is constant.

I. E = q + w

A. Euniv = Esys + Esurr = 0 true, since energy is conserved, energy just changes of type, will not increase/decrease

B. The work done by a system equals the work done on the surroundings. true, since Esystem = -Esurroundings

C. Heat released by the system is absorbed by the surroundings. TRUE, since it must go to somewhere

D. Energy can be neither created nor destroyed, but it can change from one form to another. true, as stated in A

E. The total energy of the universe is decreasing. false, it is constant

F. E = Efinal – Einitial true, and dE = , therefore Efinal = einitial

G. The energy gained or lost by a system must equal the energy lost or gained by the surroundings. true, since eneryg is constant

H. The sum of all of the kinetic and potential energies of all of the components of a system is constant.false, they will change

I. E = q + w only true if you use the convention of W = P*dV and not W= -P*dV

this is what i got for the answer but is wrong help please!

u have done all correct ,but option H is true, not false for the first law of thermodynamics

the total energy of an isolated system remains constant though it may change from one form to another.

check these statements once also

heat absorbed from surrounding= work done by the system

heat given to surroundings = woek done on the system.

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