Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, $$\gamma = \frac{{{{\text{c}}_{\text{p}}}}}{{{{\text{c}}_{\text{v}}}}},$$ known as adiabatic index and R = Gas constant)
A. $$\frac{{{{\text{c}}_{\text{v}}}}}{{{{\text{c}}_{\text{p}}}}} = {\text{R}}$$
B. $${{\text{c}}_{\text{p}}} - {{\text{c}}_{\text{v}}} = {\text{R}}$$
C. $${{\text{c}}_{\text{v}}} = \frac{{\text{R}}}{{\gamma - 1}}$$
D. Both (B) and (C)
Answer: Option D
This Question Belongs to Mechanical Engineering >> Engineering Thermodynamics
Addition of heat at constant pressure to a gas results in
A. Raising its temperature
B. Raising its pressure
C. Raising its volume
D. Raising its temperature and doing external work
Which of the following items is not a path function?
A. Heat
B. Work
C. Kinetic energy
D. Thermal conductivity
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is
A. Feasible
B. Impossible
C. Possible
D. Possible, but with lot of sophistications
The absolute zero pressure can be attained at a temperature of
A. 0°C
B. -273°C
C. 273 K
D. None of these
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