What would likely happen if you were to touch the flask in which an endothermic reaction were occurring? the flask would probably feel warmer than before the reaction started. the flask would feel the same as before the reaction started. the flask would probably feel cooler than before the reaction started?

The flask would probably feel cooler than before the reaction started.

Explanation:

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.