The volume of a 1-kg copper sphere is not allowed to vary by more than 0.1%. if the pressure exerted on the sphere is increased from 10 bar while the temperature remains constant at 300 k, determine the maximum allowed pressure, in bar. average values of rho, β and κ are kg/m^3, 49.2 × 10^-6 (k)^-1, and 0.776 × 10^-11m2/n respectively

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false