Q.
Which of the following variables are called state variables?
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a
Only pressure (p) and volume (V)
b
Only volume (V) and temperature (T)
c
Only pressure (p) and temperature (T)
d
Pressure, volume and temperature
answer is D.
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Detailed Solution
A state variable is a property of a system that depends only on the current, equilibrium state of the system and thus do not depend on the path by which the system arrived at its present state.Examples: temperature, pressure, and volume.
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