First Law of Thermodynamics

First law of Thermodynamics

First law of Thermodynamics states that " Amount of heat changed in system is equal to sum of change in internal energy and workdone of a system". First law if Thermodynamics is also known as princ...

1. Which of the following is correct expression of the first law of thermodynamics?a) q= ∆ H - Wb) ∆ H=q+Wc) ∆ U= q+ Wd) ∆ U= ∆ H +P ∆ V 2.The first law of thermodynamics fails to decide________...

1. Which of the following is correct expression of the first law of thermodynamics?

a) q=H - W

b)H=q+W

Second Law of Thermodynamics

A Qualitative approachThis approach is not an equational approach but rather a statement of impossibility. This includes 'Kelvin-Planck statement' and 'Clausius statement'.1) Kelvin-Planck Stateme...

Energetics of Chemical reaction

Thermodynamic termsIn order to study the law of thermodynamics it is essential to understand certain terms used in thermodynamics. These terms have definite meaning. So, the most commonly used term...

7 .Which of the following is the largest unit of energy?electron voltjoulecalorieerg8. A perfect black body has a unique characteristic feature asa good absorber onlya good radiatora good absorber ...

7: Calorie is the largest unit of energy, among the given.

8: A perfect black body has a unique characteristic feature as a good absorber and a good radiator.

9: A thermodynamic process where no heat is exchanged with the surroundings is adiabatic.

10: Nernst formulated the Third law of thermodynamics.

11: The irreversibility of a process occurs due to either a) lack of equilibrium during the process or b) involvement of dissipative effects or both.

12: Efficiency of heat engine cycle is the ratio...

Second Law of Thermodynamics

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