Explain why a rubber washer stops sealing tightly after several years

What will be an ideal response?


Over time the rubber is going to continue to crosslink and become harder which will not be as compliant with the other surface. This will also cause it to become more brittle and eventually break. It could also degrade.

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Technician A says that vehicles with independent rear suspensions provide better handling than those with solid rear axles. Technician B says that vehicles with independent rear suspensions generally have less unsprung weight. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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All herbs are edible

Indicate whether the statement is true or false

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The silk, as it is taken from the cocoon, is called ________________________ silk and has to be boiled in a solution of soap and water to remove the gummy coating

Fill in the blank(s) with correct word

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Which of the following is not an assumption used for the van Laar model with the Scatchard-Hildebrand defined parameters?

A. The system excess molar volume is zero. B. The enthalpy of vaporization of the components in the system are equal to the internal energy of vaporization. C. The system excess molar entropy is zero. D. None of the above are assumptions. E. All of the above are assumptions.

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