Consider fluid flow in a tube whose surface temperature remains constant. What is the appropriate temperature difference for use in Newton’s law of cooling with an average heat transfer coefficient?
What will be an ideal response?
When the surface temperature of tube is constant, the appropriate temperature difference for use in the Newton's law of cooling is logarithmic mean temperature difference that can be expressed as 
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The reaction A ? B + C occurs in the gas phase and has an equilibrium constant of KT = 10 at the reaction temperature. Ten moles of A are placed in a reactor and the system is allowed to come to equilibrium at P = 0.2 MPa. The ideal gas model applies. How many moles of A will be in the reactor at equilibrium?
A. 0 B. 0.199 C. 0.465 D. 0.871 E. 10
In the AWS specification for stainless steel-covered arc electrodes, following the prefix, the three-digit AISI stainless steel number is used to indicate ____.
A. the minimum tensile strength of the deposited metal B. usability and performance capabilities C. a flux cored electrode D. the type of stainless steel in the filler metal
Write your definition of radical. Then use this definition to argue that the farmers' response to their problems in the 1880s and 1890s was or was not radical.
What will be an ideal response?
Residential heating systems typically range from:
A) 50,000 BTUs to 150,000 BTUs. B) 75,000 BTUs to 125,000 BTUs. C) 75,000 BTUs to 200,000 BTUs. D) 100,000 BTUs to 120,000 BTUs.