Question 10 to 11.
10. Compute the volume change of a solid copper cube of initial volume 6.4\times10^{-5}m^{3} when subjected to a pressure of
20\times10^{6}Pa. The bulk modulus is 125000\times10^{6}Pa.
a. 1.024\times10^{-t}m^{3} b. -102\times10^{-1}m^{3} c. -1.024\times10^{-5}cm^{3} 16-1.024\times10^{-3}m^{3}
11. The total energy content of a system which is equal to the sum of all forms of energy possessed by the atoms and
molecules of the system is known as
a. heat b. temperature internal energy d. external energy
10. To compute the volume change of the solid copper cube, we can use the formula:
ΔV = -V * ΔP / B
where ΔV is the volume change, V is the initial volume of the cube, ΔP is the change in pressure, and B is the bulk modulus.
Given:
Initial volume (V) = 6.4 * 10^-5 m^3
Change in pressure (ΔP) = 20 * 10^6 Pa
Bulk modulus (B) = 125000 * 10^6 Pa
Substituting the values into the formula:
ΔV = -(6.4 * 10^-5) * (20 * 10^6) / (125000 * 10^6)
= -1.024 * 10^-3 m^3
Therefore, the volume change of the solid copper cube is -1.024 * 10^-3 m^3.
a. -1.024 * 10^-3 m^3
11. The total energy content of a system which is equal to the sum of all forms of energy possessed by the atoms and molecules of the system is known as internal energy.
c. internal energy