Asked by adex

A glass of composition 85% SiO2 - 15% K2O is to be surface strengthened by ion exchange. To this end, two identical specimens approximately the size and shape of credit cards are soaked for the same amount of time at 850degreeC. Sample A is soaked in NaCl and sample B is soaked in KCl. From the list below, select the statements that are true.
a- The yield strength of Sample A will decrease while the yield strength of Sample B will increase.
b- The yield strength of Sample A will increase while the yield strength of Sample B will decrease.
c- The yield strength of both Samples A and B will increase.
d- The yield strength of both Samples A and B will decrease.
e- The yield strength of Sample A will decrease.
f- There will be no change in the yield strength of Sample B.

Answers

Answered by Anonymous
It's A.
Answered by Anonymous
No,its not A. Answer is E and F are the correct answer i think so
Answered by schoolgirl
It's E
Answered by schoolgirl
Sorry I meant the last one
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