The pressure of a gas is given by, p = 890 kPa. In converting this pressure to other units, which of the following answers is completely true? (1.0 Pa = 1.0 Nm ^{-2}, and 1.0 mbar = 100 Pa)
p = 0.89 N m^{-2}andp = 8900 mbar
p = 8.9 ×10^{5} N m^{-2}andp = 8.9 ×10^{7} mbar
p = 8.90 N m^{-2}andp = 8.9 mbar
p = 8.9 ×10^{5} N m^{-2}andp = 8900 mbar
The following statement describes the variation of pressure, p, with temperature, T, of a fixed amount of an ideal gas in a fixed volume. “The pressure of the gas at 80 C was 5.65 kPa, and increased with temperature at a rate of 16.0 Pa C^{-1}.” In converting the temperature to other units, which of the following statements is completely true? (T_{K} = T_{C} + 273 and T_{F} = 1.8×T_{C} + 32, where T_{K}, T_{C} and T_{F} are temperatures in degrees Kelvin, Celsius and Fahrenheit respectively)
The pressure of the gas at 353K was 5.65 kPa, and increased with temperature at a rate of 4.37 kPa K^{-1}
The pressure of the gas at 353K was 5.65 kPa, and increased with temperature at a rate of 0.0586 Pa K^{-1}
The pressure of the gas at 176F was 5.65 kPa, and increased with temperature at a rate of 28.8 Pa F^{-1}
The pressure of the gas at 176F was 5.65 kPa, and increased with temperature at a rate of 8.89 Pa F^{-1}
2.3 ×10^{-5} mol of an ideal gas is contained in a volume of 10 cm^{3} and at a temperature of 20 C. Calculate (to 3 sf) the pressure exerted by the gas.
0.382 kPa
5.60 kPa
0.382 Pa
5.60 Pa
Calculate the amount of an ideal gas contained in a volume of 0.30 dm^{3}, at room temperature of 25 C and a pressure of 80 mbar. Which of the following values is closest to your answer. (Note that a pressure of 1 atmos = 1.0 bar = 1000 mbar = 1.0×10^{5} Pa)