1. Zeroth law of thermodynamics
(a) deals with conversion of mass and energy
(b) deals with reversibility and
irreversibility of process
(c) states that if two systems are in
equilibrium with a third system, they are in thermal equilibrium with each
other
(d) deals with heat engines
Answer : c
2. The basis for measuring thermodynamic
property of temperature is given by
(a) zero law of thermodynamics
(b) first law of thermodynamics
(c) second law of thermodynamics
(d) third law of thermodynamics
Answer : a
3. The equivalence of two systems in
thermal equilibrium is represented by
(a) Temperature (b) Heat
(c) Specific Heat (d) Energy
Answer: a
4. Measurement of temperature is based on
(a) thermodynamic properties
(b) zeroth law of
thermodynamics
(c) first law of thermodynamics
(d) second law of
thermodynamics
Answer : b
5. Energy can neither be created nor
destroyed but can be converted from one form to other is referred from
(a) zeroth low of thermodynamic
(b) first law of thermodynamics
(c) second law to thermodynamics
(d) basic law of thermodynamics
Answer : b
6. First law of thermodynamics furnishes
the relationship between
(a) heat and work
(b) heat, work and properties of
the system
(c) various thermodynamic processes
(d) heat and internal energy
Answer : b
7. According to first law of
thermodynamics
(a) work done by a system is equal to heat
transferred by the system
(b) total internal energy of a system
during a process remains constant
(c) internal energy, enthalpy and entropy
during a process remain constant
(d) total energy of a system remains
constant
(e) entropy of a system remains constant.
Answer : d
8. First law of thermodynamics
(a) enables to determine change in
internal energy of the system
(b) does not help to predict whether the
system will or not undergo a change
(c) does not enable to determine change in
entropy
(d) provides relationship between heat,
work and internal energy
(e) all of the above.
Answer : e
9. According to first law of
thermodynamics
(a) mass and energy are mutually convertible
(b) Carnot engine is most
efficient
(c) heat and work are mutually convertible
(d)
mass and light are mutually convertible
(e) heat flows from hot substance to cold
substance.
Answer : c
10. 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
(e) doing external work.
Answer : d
11. The first law of thermodynamics is the
law of
(a) conservation of mass
(b)
conservation of energy
(c) conservation of momentum
(d)
conservation of heat
Answer : b
12. The heat given to an ideal gas in
isothermal condition is used
(a) in raising temperature (b) in doing
external work
(C) in raising temperature and doing
external work
(d) in increasing the internal energy
Answer: b
13. For a closed system, the difference
between the heat added to the system and the work done by the system is equal
to the change in
(a) Enthalpy
(b) Entropy
(c) Temperature
(d) Internal Energy
Answer: d
Hint: By First law Q-W=U
14. A thermodynamic process where no heat
is exchanged with the surroundings is
(a) Isothermal
(b) Adiabatic
(c) Isobaric
(d) Isotropic
Answer: (b)
15. The internal energy of an ideal gas
depends only on
(C)Temperature (d) Temperature and Volume Both
Answer: b
16. The internal energy of a real gas
depends on
(a)Temperature (b) Volume
(C) Pressure (d) Temperature and
Volume Both
Answer: b
17. Which of the following function is
path independent
(a)Work (b) Heat
(c)Temperature (d) Internal Energy
Answer: d
18.Which
thermodynamic process cannot be plotted accurately on thermodynamic
coordinates?
a. reversible process
b. irreversible process
c. both reversible and irreversible processes
d. none of the above
Answer:
b
20. The law
of expansion or compression of a gas is given by PV to the power n= constant. If n=1 then change is named as
(a)Adiabatic (b) Isothermal
(c)Isobaric (d) None of the above
Answer:
b
Nyc
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