Liquid ammonia at 270K is compressed from its saturation pressure of 381 kPa to 12,000 kPa. For saturated liquid ammonia at these conditions: V = = 1.551 10 -3 m3 kg B= 2.095* 10-3 K-1 K = 4.53 10 5bar-1 * Assume the ammonia is an incompressible fluid. What is the change in enthalpy in J/mol? J What is the change in entropy in ? mol-K What is the temperature after compression in Kelvin?

Nitrogen from a cylinder is bubbled through acetone at 1.1 bar and 323 K at the rate of 2 x 10^-4 m^3/min. The nitrogen, saturated with acetone vapor leaves at 1.013 bar, 308 K at the rate of 3.83 x 10^-4 m^3/min. What is the vapor pressure of acetone at 308 K?

In this problem we will consider compression of a liquid sample. For practical purposes liquids can be considered incompressible. (a) Evaluate AG when pressure acting on 100 mm³ of mercury is increased by 1000 bar at constant T. (b) To evaluate q for this process we will need to use Maxwell relations. Starting from the differential of S in terms of differentials of T and p show that TdS = CpdT - aTVdp. Hence, show that the energy transferred as heat when the pressure on an incompressible liquid or solid is increased by Ap at constant T is equal to -aTVAp. Evaluate q for the compression process in (a) at T = 273 K (a = 273 K (a = 1.82 × 10−4 K−¹).

1.10 Methane is heated in a rigid container from 230 kPa and 21°C to 400°C. Determine the final pressure of the methane.