SSC JE Mechanical Engineering 2017 Set 3 Paper

Question : 117 of 200

Marks: +1, -0

The rate of heat transfer across any plane normal to the x-direction is proportional to the wall area and the temperature gradient in the x-direction.
This statement is also referred to as___.

Second Law of Thermodynamics
Kelvin's Law
Third Law of Thermodynamics
Fourier's Law

Validate

Solution:

Q∝A{dT}/{dx}

A → Cross section Area

{dT}/{dx}

→ Temperature gradient

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