Question

16 When a system changes state or state variables (PVT) changes with time then it is
known as a thermodynamic process. First law of themodynamics is a statement of
conservation of energy that is the heat given to a system is either used in doing work
or it increases the intemal energy of the system or both. An ideal gas has a specific
heat at constant pressure Ce = 15/2)R. The gas is kept in a dosed vessel of fixed
volume 8.3 x 10' m' at a temperature of 300 K and a pressure of 1.6 x 10°N/m². An
amount of 2.49 x 10ʻJ of heat energy is supplied to the gas. [R = 8.3 J/
mol K]
w
H
The final temperature of the gas is
575 K
475 k
675 k
775 K
(c)
The final pressure of the gas is
3.6 x 10' N/m?
4.6 10° Nm
5.6 x 10' N/m2
6.6 % 10%Nim?
For an isochonc process, which of the following is zero
(a) Change in intemal Energy
Heat Exchange
Work done by the gas
None of these
(iv)
For an isothermal process, the specific heal capacity of the gas should be
(v)
(c) Zero
(d) Infinity
What should be the relation between specific heat capacity at constant
pressure (Cp) and specific heat capacily at constant volume (Ov)
(a) Cel Cy=R
(b) Cp-Cv=R
c)
Cp+ Gy = 2R
Ce=C​

Answer 1

Answer:

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