A student sets up two reactions Reaction 1 uses 0.280 mol/L of reactant, and Reaction 2 uses 0.410 mol/L of reactant. How many times faster is Reaction 2 compared to Reaction 1?

false

because it does not have the potential to be entirely used up

the answer is option a.

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.