Heating at constant pressure

The value of the specific heat at constant pressure and constant volume is 1.404 at 0°C. [Pg.439]

Available data on the thermodynamic and transport properties of carbon dioxide have been reviewed and tables compiled giving specific volume, enthalpy, and entropy values for carbon dioxide at temperatures from 255 K to 1088 K and at pressures from atmospheric to 27,600 kPa (4,000 psia). Diagrams of compressibiHty factor, specific heat at constant pressure, specific heat at constant volume, specific heat ratio, velocity of sound in carbon dioxide, viscosity, and thermal conductivity have also been prepared (5). [Pg.18]

Specific Heat at Constant Pressure, Thermal Conductivity,... [Pg.48]

Density, Specific Heats at Constant Pressure and at Constant Volume and Velocity of Sound for Compressed... [Pg.48]

PHYSICAL AND CHEMICAL DATA TABLE 2-309 Specific Heat at Constant Pressure, Thermal Conductivity, Viscosity, and Prandtl Number of R32 Gas... [Pg.320]

C. Cp Specific heat at constant pressure for specific heat of solid Cg for specific heat of gas J/(kg-K) Btii/(lk-°F)... [Pg.549]

K = Cp/Cv the ratio of specific heats at constant pressure to constant volume. This ratio is 1.4 for most diatomic gases, g = 32.2ft/sec"... [Pg.12]

Cp = specific heat at constant pressure c = specific heat at constant volume... [Pg.19]

MCp - molal specific heat at constant pressure. MCp, = Xj MCpi + X2MCp2 + X3MCp3 +. . . ... [Pg.19]

The integrated terms are simply the specific heat of the unit mass of adsorbent and its associated adsorbate. The specific heat at constant volume has been used for the adsorbate since, theoretically, there is no expansion of the adsorbate volume and the heat required to raise the temperature is the change in internal energy. In practice there will be some expansion and a pessimistically high estimate could use the specific heat at constant pressure The specific heat of the adsorbed phase is in any case difficult to estimate and it is common to approximate it to that of saturated liquid adsorbate at the same temperature. [Pg.314]

It is assumed that the entry gas (g). the cooling air (c) and the mixed exit gas (m) are all semi-perfect gases with enthalpies measured from the same temperature datum (absolute temperature, T = 0). The specific heat at constant pressure of the mixture in state 5m... [Pg.61]

Ratio of specific heat at constant pressure to that at constant volume=k... [Pg.154]

CD = tube length for vaporization, ft. Figure 10-110. c or Cp = heat capacity or specific heat at constant pressure, Btu/lb(°F) or, heat capacity of condensate, pcu/lb(°C)... [Pg.273]

Figure 15.5 shows the ideal open cycle for the gas turbine that is based on the Brayton Cycle. By assuming that the chemical energy released on combustion is equivalent to a transfer of heat at constant pressure to a working fluid of constant specific heat, this simplified approach allows the actual process to be compared with the ideal, and is represented in Figure 15.5 by a broken line. The processes for compression 1-2 and expansion 3-4 are irreversible adiabatic and differ, as shown from the ideal isentropic processes between the same pressures P and P2 -... [Pg.179]

When a substance is heated at constant pressure without change of phase through a temperature rise dr the heat absorbed is Cp dr, where Cp is the molar heat capacity at constant pressure, and the entropy increase is... [Pg.1224]

What will happen to the position of the equilibrium if the system is compressed (at constant temperature) Heated at constant pressure ... [Pg.341]

From (5) we see that the molar volume of ammonia at 25°C and one atmosphere pressure is 24.5 liters, whereas it is 22.4 liters at 0°C. The molar volume of ammonia depends upon the temperature. This result is no surprise—a sample of gas expands when heated at constant pressure. So when we compare the molar volumes of different gases, they should be at the same temperature (and, by the same sort of argument, at the same pressure). [Pg.51]

Whereas heat capacity is a measure of energy, thermal diffusivity is a measure of the rate at which energy is transmitted through a given plastic. It relates directly to processability. In contrast, metals have values hundreds of times larger than those of plastics. Thermal diffusivity determines plastics rate of change with time. Although this function depends on thermal conductivity, specific heat at constant pressure, and density, all of which vary with temperature, thermal diffusivity is relatively constant. [Pg.398]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...