The atomic mass of gold is 197 g/mole, and the density of gold is 19.3 g/cm3. using this information along with the measured value of young's modulus, calculate the speed of sound in gold.

Question

Chemistry

Smith

3 September, 02:21

The atomic mass of gold is 197 g/mole, and the density of gold is 19.3 g/cm3. using this information along with the measured value of young's modulus, calculate the speed of sound in gold.

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Garner · Answer 1

The speed of sound is given by the formula

Speed of sound = square root (Young's Modulus/density)

Young's modulus for gold = 78 GPa which is 7.8 * 10^10 Pa

Speed of sound = (7.8 * 10^10 / 19.3) = sqrt (4.04 * 10^9)

Speed of sound = 6.36 * 10^4 m/s <<< = = = answer.