2 Two surfaces of a plane wall of 15cm thickness and 5 m´ area are maintained at 240°C and 90°C respectively. Determine the heat transfer between the surfaces and temperature gradient across the wall if conductivity of the wall material is18.5 W/(m-K).

What is thermodynamic and give important formulas and points Whole entire thermodynamics

Subject: Thermodynamicsshow your solution

In Thermodynamics we are using the following equation, can you please help to share what each variable means and any other information needed? Thank you