KTGHard
Question
For an ideal gas, the heat capacity at constant pressure is larger than than that at constant volume because
Options
A.positive work is done during expansion of the gas by the external pressure
B.positive work is done during expasion by the gas against external pressure
C.positive work is done during expansion by the gas against intermolecular forces of attraction
D.more collisions occur per unit time when volume is kept constant.
Solution
At constant pressure nCPdT = ᐃU+ PdV [by first law of thermodynamics]
At constant volume nCvᐃT = ᐃU,
∴ Cp > Cv
At constant volume nCvᐃT = ᐃU,
∴ Cp > Cv
Create a free account to view solution
View Solution FreeMore KTG Questions
Four containers are filled with mono atomic ideal gases. For each container, the number of moles, the mass of an individ...One mole of an ideal gas is kept enclosed under a light piston (area=10-2 m2) connected by a compressed spring (spring c...O2 gas is filled up in a cylinder. If pressure is increased 2 times temperature becomes four times. then how much times ...In an isothermal expansion of an ideal gas. Select wrong statement:...The lowest pressure (the best vaccum) that can be created in laboratory at 27oC is 10-11 mm of Hg. At this pressure, the...