1. Celsius temperature of the triple point of water is ( in degree Celsius)?
a) -0.00
b) 0.00
c) 0.01
d) None of the mentioned
Explanation: Zero point of degree Celsius is shifted.
2. Which of the following is chosen as the standard thermometric substance?
a) Gas
b) Liquid
c) Solid
d) All of the mentioned
Explanation: Smallest variation is observed among different gas thermometers.
3. A real gas behaves as an ideal gas when?
a) Temperature approaches zero
b) Pressure approaches zero
c) Both temperature and pressure approaches zero
d) None of the mentioned
Explanation: It is a property of gas.
4. The temperature interval from the oxygen point to the gold point is divided into how many parts?
a) 2
b) 3
c) 4
d) 1
Explanation: Taken as international temperature scale.
5. Optical method is adopted for measuring temperatures higher than the gold point?
a) True
b) False
Explanation: Temperature is determined with the help of Planck’s law of thermal radiation.
6. The magnitude of mechanical work is the
a) product of the force and distance travelled perpendicular to the force
b) product of the force and distance travelled parallel to the force
c) sum of the force and distance travelled perpendicular to the force
d) sum of the force and distance travelled parallel to the force
Explanation: The work is done by a force as it acts upon a body moving in the direction of the force.
7. Work done by a system is taken to be
a) positive
b) negative
c) zero
d) varies according to situation
Explanation: In thermodynamics, work done by a system is take to be positive.
8. Work done on a system is taken to be
a) positive
b) negative
c) zero
d) varies according to situation
Explanation: In thermodynamics, work done on a system is take to be negative.
9. Work is a
a) point function
b) path function
c) depends on the state
d) none of the mentioned
Explanation: Amount of work done depends on the path the system follows.
10. Thermodynamic properties are
a) point function
b) path function
c) depends on the state
d) none of the mentioned
Explanation: For a given state there is a definite value for each property.