Heat Transfer
With the increase of temperature, the Col-burn jH factor

Decreases
Remains unchanged
Increases
May increase or decrease ; depending on temperature

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Heat Transfer
LMTD for counterflow and prallel flow heat exchanger will be the same, when the

Outlent temperature of both the hot and cold fluid are same
Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid
Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid)
None of these

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