In moving out of a dormitory at the end of the semester, a student does 1.82 x 104 J of work. In the process, his internal energy decreases by 4.07 x 104 J.

Determine each of the following quantities (including the algebraic sign):

(a) W,

(b) U

(c) Q.

Question

Physics

Francisco Garner

1 July, 02:24

In moving out of a dormitory at the end of the semester, a student does 1.82 x 104 J of work. In the process, his internal energy decreases by 4.07 x 104 J.

Determine each of the following quantities (including the algebraic sign):

(a) W,

(b) U

(c) Q.

+4

Answers (1)

Know the Answer?

Jeffrey Stokes · Answer 1

(a) Work done, W = 1.82 x 10^4 J

(b) internal energy, U = - 4.07 x 10^4 J (as it decreases)

(c) According to the first law of thermodynamics

Q = W + U

Q = 1.82 x 10^4 - 4.07 x 10^4

Q = - 2.25 x 10^4 J

In moving out of a dormitory at the end of the semester, a student does 1.82 x 104 J of work. In the process, his internal energy decreases by 4.07 x 104 J.Determine each of the following quantities (including the algebraic sign):(a) W,(b) U(c) Q.

In moving out of a dormitory at the end of the semester, a student does 1.82 x 104 J of work. In the process, his internal energy decreases by 4.07 x 104 J.

Determine each of the following quantities (including the algebraic sign):

(a) W,

(b) U

(c) Q.