The temperature distribution across a wall 1 m thick at a certain instant of time is t(x) = a + bx + cx^2, where t is in kelvin and x is in meters, a = 350 k, b = -100 k/m, and c = 50 k/m2. the wall has a thermal conductivity of 2 w/m·k. (a) on a unit surface area basis, determine the rate of heat transfer into and out of the wall and the rate of change of energy stored by the wall. (b) if the cold surface is exposed to a fluid at 10 °c, what is the convection coefficient?

a)In Q= - 200 W

Out Q = 0 W

b)h = 2.89 W/m²·K

Explanation:

T(x) = a + bx + cx²

T(x) = 350 -100 x + 50 x²

a)

We know that

In condition : x= 0

Put x= 0

K= 2  W/m·K

Q = -100 x 2 = - 200 W

Exit condition : x= 1

Put x= 1

It means that right side of wall is insulated.

b)

Lets take h is the convection coefficient of fluid

Q= h ΔT

T(x) = 350 -100 x + 50 x²

At x = 0 ,   T= 350 K

So

ΔT = 350 - (273+10) = 350 - 283 K

ΔT = 67 K

Q= h ΔT

200 = h x 67

h = 2.89 W/m²·K

answer:

science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. a science is a particular branch of science such as physics, chemistry, or biology. physics is the best example of a science which has developed strong, abstract theories.

pseudoscience is a collection of beliefs or practices mistakenly regarded as being based on scientific method.

plz rate as brainliest

answer: i have no clue tbh

explanation:

it happens to me to tho