If ∆U and ∆W represent the increase in internal energy and work done by the system

If U And W Represent The Increase In Internal Energy Physics QuestionIf U And W Represent The Increase In Internal Energy Physics Question

If ∆U and ∆W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?

Options

(a) ∆U = – ∆W, in an adiabatic process
(b) ∆U = ∆W, in an isothermal process
(c) ∆U = ∆W, in an adiabatic process
(d) ∆U = – ∆W, in an isothermal process

Correct Answer:

∆U = – ∆W, in an adiabatic process

Explanation:

BY first law of thermodynamics, ∆Q = ∆U + ∆W
In adiabatic process, ∆Q = 0 ∆U = – ∆W
In isothermal process, ∆U = 0 ∆Q = ∆W

AddThis Website Tools
admin:

Related Questions

  1. In a parallel plate capacitor of capacitance C, a metal sheet is inserted
  2. The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
  3. In Young’s double slit experiment, the fringe width is 1×10⁻⁴ m, if the distance
  4. A particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is
  5. Equal charge q each are placed at the vertices AQ and B of an equilateral triangle