Two parallel opposed, infinite black planes are maintained at 300°C and 400°C respectively. If the temperature difference is doubled by increasing the temperature from 400°C to 500°C, the heat exchange rate will increase by a factor of about
A)2.5
B)5.5
C)8.75
D)6.25
E)4.5

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The Answer of Two parallel opposed, infinite black planes are maintained at 300°C and 400°C respectively. If the temperature difference is doubled by increasing the temperature from 400°C to 500°C, the heat exchange rate will increase by a factor of about
A)2.5
B)5.5
C)8.75
D)6.25
E)4.5

Two Parallel Opposed, Infinite Black Planes Are Maintained at 300°C