If Cp and Cv are the specific heats for a gas at constant pressure and at constant volume respectively, then the relation Cp-Cv=R is exact for? a) Ideal and real gases at all pressures b) Ideal gas at all pressures and real gas at a moderate pressure c) Ideal gas and nearly true for real gases at high pressure d) Ideal gas and nearly true for real gases at a moderate pressure

5

Learning Goal: To understand the ideal gas law and be able to apply it to a wide variety of situations. The absolute temperature T, volume V, and pressure p of a gas sample are related by the ideal gas law, which states that PV = nRT Here n is the number of moles in the gas sample and R is a gas constant that applies to all gases. This empirical law describes gases well only if they are sufficiently dilute and at a sufficiently high temperature that they are not on the verge of condensing. In applying the ideal gas law, p must be the absolute pressure, measured with respect to vacuum and not with respect to atmospheric pressure, and I must be the absolute temperature, measured in kelvins (that is, with respect to absolute zero, defined throughout this tutorial as -273°C). If p is in pascals and V is in cubic meters, use R = 8.3145 J/(mol · K). If p is in atmospheres and V is in liters, use R = 0.08206 L atm/(mol-K) instead. Part A A gas sample enclosed in a rigid metal container at…

An ideal gas is kept at constant pressure while increasing its volume from an initial volume of 2 liters to a final volume of 6 liters. The initial temperature of the gas is 300K, what is the final temperature? O 100K O 900K O 1200K O 300K O oo O

The number of collisions between helium atoms with the walls of the container per unit time is... A. Fixed when added CO2 gas into the container at a constant temperatureB. Decreases when the container is reduced in halfC. Increases in size when the temperature dropsD. Decreases as the average kinetic energy per molecule increasesE. Increases in size when CO2 is added to a container at a constant temperature

a) An ideal gas occupies a volume of 1.6 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container.    molecules (b) If the pressure of the 1.6 cm3 volume is reduced to 1.2 ✕ 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?  mol       example of question a  An ideal gas occupies a volume of 2.4 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container.   6.01e+19 molecules