If 1000 ft3 atmospheric air at zero Fahrenheit temperature are compressed to a volume of 1728 in3 at a temperature of 3000F, The pressure of the air considering the fact that the mass is constant is Answer in Hg. Round-off your answer to the nearest whole number.

Would the answer be the same If the mass = 8.3kg but all the other values were the same ?

What is the specific internal energy of water at 50°C with a specific enthalpy of 1500 kJ/kg? Report your answer to one decimal place using rounding.

Carbon dioxide exists at 350 K. In the question that follows, select the answer that is closest to the true value. What is s° in units of kJ/kmol*K ?

A container holds 75.2 liters of Oxygen at 271.4K and a pressure of 3.87 atmospheres.  How much heat is required to raise the temperature of this gas to 296.4K, holding the volume constant?  Give your answer in kJ.  Treat the gas as an ideal gas.  Note:  It is understood that your answer is in units of kilo-Joules, however do not explicitly include units in your answer.  Enter only a number.  If you do enter a unit ("kJ" in this case), you answer will be counted wrong.

1.0A cylinder ocontains 0.45 m' of a gas at 1 105 Nim' and 80°C. The gas is compressed to a volume of 0.13 m, the fmal pressure being 5 x 105 Nim. Detetmine : (a) The mass of gas : (b) The value of index 'n' for compression ( c) The increase in internal energy of the gas : (d) The heat received or rejected hy the gas during compression. (a) 0.433 kg : (b) n=1.296. : (e) 49.9 kl.: (d) 17.54 kl.

How many Joules of heat are absorbed by 3 moles of an ideal gas expanding isothermally from an initial pressure of 5 atmospheres to a final pressure of 3 atmospheres at the temperature of zero degrees Celsius. Write your answer in Joules, but do not write the units.