Gate /Net 10 most expected questions


1) . The Gibbs function G in thermodynamics is defined as G= H- TS, In an isothermal, isobaric, reversible process , G –
a) Remains constant but not zero ( ✓✓)
b) Varies linearly
c) Varies non – linearly
d) Zero
2) . Specific heat of metals can be expressed as –
a) T³
b) AT+BT²
c) AT+ BT³
d) AT²+BT³ (✓✓)

3) . In a micro canonical ensemble a system A of fixed volume is in constant with a large reservoir B . then
a) A can exchange only energy with B
b) A can exchange only particle with B
c) A can exchange neither energy nor particle with B (✓✓)
d) A can exchange both energy and particle with B

4) . According to Debye's theory of specific heat at low temperature specific heat is proportional to –
a) T
b) T²
c) T³(✓✓)
d) Independent of T
5) . The molecules of gas moving through space with some velocity possess what kind of energy?
a) translation energy(✓✓)
b) spin energy
c) rotational e energy
d) none of these

6) . What type of system energy is related to the molecular structure of a system?
a) macroscopic form of energy
b) internal energy
c) microscopic form of energy(✓✓)
d) external energy

7) .The sum of all the microscopic form of energy is called _____.

              a) Total energy
              b) Phase energy
              c). System energy
              d). Internal energy(✓✓)


8) .What does the term “uniform” mean?

a) No change in volume
b) no change with time
c) no change with location (✓✓)
d) no change with mass

    9)        .What is a process during which the specific volume remains constant?
            a) isobaric process
            b) isothermal process
            c) Isochoric or isometric process(✓✓)
            d)  none
10)       .  The decrease in availability or lost work is proportional to
              a) pressure drop
              b) mass flow rate
              c) both of the mentioned(✓✓)
              d) none of the mentioned


✓✓ indicates correct answer .