63°c =
0336 к
o 63 к
о-210 к
ook

The correct answer is 336 K, See the explanation below, please.

Explanation:

The equivalence between degrees Celsiud and Kelvin is:

0 ° C = 273 K

That is, to go from ° C to K, 273 must be added.

At 63 ° C ---> 63 + 273 = 336K

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.