Gases have
A. Only one value of specific heat
B. Two values of specific heat
C. No value of specific heat
D. Under some conditions one value and sometimes two values of specific heat
Answer: Option B
This Question Belongs to Mechanical Engineering >> Engineering Thermodynamics
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Comments ( 2 )
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
cp&cv
the specific heat is the amount of energy needed to raise the temperature of one mole of gas by 1 kelvin. the reason gasses have two specific heats because they are not stable, they change more than liquids and solids. therefore when working with gasses we have to use the (Cp) and (Cv)