Heat is transferred from a hot fluid to a cold one through a plane wall of thickness (‚âà√≠¬¨‚Ä¢), surface area (A) and thermal conductivity (k). The thermal resistance is$

A (1/h 1 + ‚âà√≠¬¨‚Ä¢/k + 1/h 2 )

1/A (1/h1 + ‚âà√≠¬¨‚Ä¢/k + 1/h2)

A (1/h1 + ‚âà√≠¬¨‚Ä¢/k + 1/h2)

1/A (h1 + ‚âà√≠¬¨‚Ä¢/k + h2)

A (1/h1 + ‚âà√≠¬¨‚Ä¢/k + 1/h2)

Heat is transferred from a hot fluid to a cold one through a plane wal

1.	Heat is transferred from a hot fluid to a cold one through a plane wall of thickness (‚âà√≠¬¨‚Ä¢), surface area (A) and thermal conductivity (k). The thermal resistance is$
A.	1/A (1/h<sub>1</sub> + ‚âà√≠¬¨‚Ä¢/k + 1/h<sub>2</sub>)
B.	A (1/h<sub>1</sub> + ‚âà√≠¬¨‚Ä¢/k + 1/h<sub>2</sub>)
C.	1/A (h<sub>1</sub> + ‚âà√≠¬¨‚Ä¢/k + h<sub>2</sub>)
D.	A (1/h<sub>1</sub> + ‚âà√≠¬¨‚Ä¢/k + 1/h<sub>2</sub>)
Answer» B. A (1/h<sub>1</sub> + ‚âà√≠¬¨‚Ä¢/k + 1/h<sub>2</sub>)

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Heat is transferred from a hot fluid to a cold one through a plane wall of thickness (‚âà√≠¬¨‚Ä¢), surface area (A) and thermal conductivity (k). The thermal resistance is$

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