Heat capacity of gases المرحلة الثانية - الثرموديناميك العملي تعيين السعة الحرارية للغازات

Heat capacity of gases

Second Year

Thermodynamics

Practical

What you can learn about
 1st law of thermodynamics
 Universal gas constant
 Isobars
 Isotherms
 Isochors and adiabatic
changes of state

Principle and tasks
Heat is added to a gas in a glass vessel
by an electric heater which is
switched on briefly. The temperature
increase results in a pressure increase
which is measured with a
manometer. Under isobaric conditions
a temperature increase results
in a volume dilatation that can be
read from a gas syringe. The molar
heat capacities Cv and Cp are calculated
from pressure and volume
change.

Related topics
Equation of state for ideal gases, 1st law of thermodynamics,
universal gas constant, degree of freedom, mole volumes, isobars,
isotherms, isochors and adiabatic changes of state.
Principle
Heat is added to a gas in a glass vessel by an electric heater
which is switched on briefly. The temperature increase results in
a pressure increase, which is measured with a manometer.
Under isobaric conditions, a temperature increase results in a
volume dilatation which can be read from a gas syringe. The
molar heat capacities CV and Cp are calculated from the pressure
or volume change.

Tasks
Determine the molar heat capacities of air at constant volume
CV and at constant pressure Cp.

See the attached file