O cantitate v=1 mol de gaz ideal evoluează. in starea iniţială volumul ocupat de gaz
este V1=8,31 L şi temperatura acestuia este T1=831 K. Să
se afle:
a. constanta de proporţionalitate dintre presiune şi volum
b. volumul final ocupat de gaz, dacă acesta se destinde
până la presiunea p2=2pi
c. temperatura finală a gazului în condiţiile punctului b

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

What kind of simple machine is a catapult?

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)