A closed vessel contains air at a pressure of 140kPag and a temperature of 20C. Find the final gauge pressure in psi if the air is heated at a constant volume to 100F. The atmospheric pressure is 28inHg.

Describe the Kelvin–Planck and Clausius statements of the second law of thermodynamics.

The molar heat capacities of substances varies with temperature. The general function for determining the molar heat capacity is given below; Cp = ( a + b T + c T 2 )R . In case of a gas where a = 3.245, b = 7.108 x10 ^-4 K ^-1 , and c = -4.06 x10^ -8 K ^-2 for temperatures in the range of 300 Kelvins to 1,500 Kelvins. What is the heat capacity (in Joules per Kelvin per mole) of this gas at 1,500 kelvins? NOTE: Express answer in THREE SIGNIFICANT FIGURES.

State the difference between extensive, intensive and specific properties of a thermodynamic system.