Calculate the amount of energy required to increase the temperature of 18.0 go vapor water from 275.0 degrees * c to 385 degrees * c (specific heat of water)

The amount of energy required to increase temperature 275°C to 385°C is ΔQ =3.95208kJ

Explanation:

Given :

According to the formula :

ΔΔ

Where ,

∴

ΔQ =

⇒ΔQ =3.95208kJ

the dissolution of polymer can be thermodynamically described in 2 steps.

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.