Most Integrated Circuits Are Made from Silicon,which Can Be Obtained

question 168

Multiple Choice

Most integrated circuits are made from silicon,which can be obtained from an inexpensive starting material,SiO₂.One step in the purification of silicon is to separate it from solid impurities by forming silicon tetrachloride gas.Given the following reactions,what is the overall enthalpy change in converting 1.00 mol of silicon dioxide into pure silicon?

• A)+1972 kJ
• B)-1972 kJ
• C)-592 kJ
• D)+592 kJ
• E)-625 kJ

---

Definitions:

Mean

The arithmetic average of a set of numbers, calculated by adding up all the values and then dividing by the number of values.

Pay Equity

Pay equity refers to the principle of equal pay for work of equal value, aiming to eliminate wage discrimination based on gender, race, or other unrelated factors to job performance.

Wilcoxon Rank Sum Test

The Wilcoxon Rank Sum Test is a non-parametric statistical test used to compare two independent groups when the data cannot be assumed to be normally distributed.

Male Faculty

Members of a school, college, or university's teaching staff who are male.