Identify the incorrect statement from the following options:

Explanation

Option A is incorrect because, in process heat exchangers, superheated steam is generally preferred over saturated steam due to its higher thermal efficiency and reduced risk of condensation. Option B correctly states that the maximum emissive power at temperature T1 occurs at a particular wavelength. Option C accurately describes that the velocity profile of air near a heated vertical plate under natural convection has a maximum perpendicular to the plate. Option D correctly quantifies the energy emitted by a body at 925 K in a specific wavelength band and relates it to emissivity.