One kmol of argon at 300 k is initially confined to one side of a rigid, insulated container divided into equal volumes of 0.2 m3 by a partition.
the other side is initially evacuated. the partition is removed and the argon expands to fill the entire container.

using the van der waals equation of state, determine the final temperature of the argon, in k.

On a average work day more than work place firs are reorted

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature