Give the balanced chemical equation (including phases) that describes the combustion of butene, c4h8(g). indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. express your answer as a chemical equation.

The balanced chemical equation that describes the combustion of butene, C₄H₈ is:

Chemical equation gives us a better understanding of chemical reaction as it represents a reaction using symbols and formula of the reactants and products involved in the reaction.

Combustion is a chemical reaction in which a compound reacts with oxygen to produce carbon (iv) oxide and water.

The equation for the combustion of butene, C₄H₈ is given below:

C₄H₈(g) + O₂(g) —> CO₂(g) + H₂O(g)

The above equation can be balance as follow:

C₄H₈(g) + O₂(g) —> CO₂(g) + H₂O(g)

There are 4 atoms of C on the left side and 1 atom on the right. It can be balance by writing 4 before CO₂ as shown below:

C₄H₈(g) + O₂(g) —> 4CO₂(g) + H₂O(g)

There are 8 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 4 before H₂O as shown below:

C₄H₈(g) + O₂(g) —> 4CO₂(g) + 4H₂O(g)

There are 2 atoms of O on the left side and a total of 12 atoms on the right side. It can be balance by writing 6 before O₂ as shown below:

C₄H₈(g) + 6O₂(g) —> 4CO₂(g) + H₂O(g)

Therefore, the balanced equation for the combustion of butene, C₄H₈ is:

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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.