I NEED HELP WITH THIS (QUESTION IS IN IMAGE) Question 1 options:

H2

I2

HI

Question 2 options:

H2

I2

HI

Question 3 options:

H2

I2

HI

Question 4 options:

0.022 M

0.156 M

Question 5 options:

0.022 M

0.156 M

Question 6 options:

0.022 M

0.156 M

Question 7 options:

0.003 M

1.11 M

7.09 M

50.3 M

the answer is 0.42 is that is an option. this question provides no info

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.