Apiston having a cross-sectional area of 0.07 m2 is located in a cylinder containing water as shown in fig. p2.73. an open u-tube manometer is connected to the cylinder as shown. for h1 60 mm and h 100 mm, what is the value of the applied force, p, acting on the piston? the weight of the piston is negligible.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.