
(a)
Interpretation:
The
Concept introduction:
The energy of a photon is given as
Where,
E is energy of photon.
H is Planck’s constant.
(b)
Interpretation:
The change in band gap when indium is substituted for gallium has to be explained.
Concept introduction:
Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor. Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping. n-type and p-type are two types of doped semiconductors.
n-type: This is a type of doped semiconductor in which many free electrons are present in conduction band.
p-type: This is a type of doped semiconductor in which holes are present in conduction band.

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Chapter 21 Solutions
General Chemistry: Atoms First
- What is the product of the reaction? F3C. CF3 OMe NaOH / H₂Oarrow_forwardWhat would you expect to be the major product obtained from the following reaction? Please explain what is happening here. Provide a detailed explanation and a drawing showing how the reaction occurs. The correct answer to this question is V.arrow_forwardPlease answer the question for the reactions, thank youarrow_forward
- What is the product of the following reaction? Please include a detailed explanation of what is happening in this question. Include a drawing showing how the reagent is reacting with the catalyst to produce the correct product. The correct answer is IV.arrow_forwardPlease complete the reactions, thank youarrow_forwardConsider the synthesis. What is compound Y? Please explain what is happening in this question. Provide a detailed explanation and a drawing to show how the compound Y creates the product. The correct answer is D.arrow_forward
- What would be the major product of the following reaction? Please include a detailed explanation of what is happening in this question. Include steps and a drawing to show this reaction proceeds and how the final product is formed. The correct answer is B. I put answer D and I don't really understand what is going on in the question.arrow_forwardWhat is the product of the following reaction? Please explain what is happening in this question. Provide a detailed explanation and a drawing showing how the reagent is reacting with the catalysts to product the correct product. The correct answer is B.arrow_forwardWhat is the missing intermediate 1 and the final product 2. Please include a detailed explanation explaining the steps of malonic ester synthesis. Please include drawings of the intermediate and how it occurs and how the final product is former.arrow_forward
- What would be the reagents and conditions above and below the arrow that will complete the proposed acetoacetic ester synthesis? If it cannot be done efficiently, then I will choose that answer. There could be 2 or 4 reagents involved. Please provide a detailed explanation and drawings showing how it would proceed with the correct reagents.arrow_forwardFor benzene, the ∆H° of vaporization is 30.72 kJ/mol and the ∆S° of vaporization is 86.97 J/mol・K. At 1.00 atm and 228.0 K, what is the ∆G° of vaporization for benzene, in kJ/mol?arrow_forwardThe reaction Q(g) + R(g) → Z(l) is shown to be exothermic. Which of the following is true concerning the reaction. it is spontaneous only at High T, it is spontaneous at low T it is nonspontaneous at all T it is spontanrous at all T. it is non spontaneous only at low T.arrow_forward
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