# The gas constant (R) is equal to the

1.  Sum of two specific heats

2.  Difference of two specific heats

3.  Product of two specific heats

4.  Ratio of two specific heats

4

Difference of two specific heats

Explanation :
No Explanation available for this question

# The difference between two specific heats, Cp and Cv for a gas represents

1.  Increase in kinetic energy of gas molecules

2.  Increase in potential energy of gas molecules

3.  External work done

4.   Increase in volume

4

External work done

Explanation :
No Explanation available for this question

# The specific heat at constant volume of solids obeys Debye’s T3 law at

1.  High temperatures

2.  Low temperatures

3.  High pressures

4.  All temperatures

4

All temperatures

Explanation :
No Explanation available for this question

# Triple point

1.  Occurs in a mixture of two or more gases

2.  Is the point, where three phases exists together

3.  Occurs in sublimation

4.  None of the above

4

Is the point, where three phases exists together

Explanation :
No Explanation available for this question

# The property of a working substance, which increases or decrease according to the heat supplied or removed in a reversible manner, is called

1.  Enthalpy

2.  Entropy

3.  Reversibility

4.  None of these

4

Entropy

Explanation :
No Explanation available for this question

# Vander Waal’s equation of state of a gas is

1.  pV=nRT

2.  (p+a/V2) (v+b)=RT

3.  (p+a/V2) (V-b)=RT

4.  (P-a/V2) (V-b)=RT

4

(p+a/V2) (V-b)=RT

Explanation :
No Explanation available for this question

# Which of the following statement (s) is (are) valid according to the (two parameters) corresponding States Principle

1.  All substances have the same PC,VC,TC

2.  All Substances have the same critical compressibility factor

3.  Z, the compressibility factor is the same function of Pr and Tr for all gases

4.  All of these

5.  Both (b) and (c)

5

Both (b) and (c)

Explanation :
No Explanation available for this question

# When a real gas undergoes Joule Thomson expansion, the temperature

1.  May remain constant

2.  Always increases

3.  May increases or decreases

4.  Always decreases

4

May increases or decreases

Explanation :
No Explanation available for this question

# For an ideal gas, the ratio of specific heats Cp/Cv = - (V/P)(∂P/∂v)s

1.  Cp/Cv > 0

2.  Cp/Cv < 0

3.  Since (∂P/∂v)s < 0 for an ideal gas, Cp/Cv > 0

4.  Cp is is very nearly equal to Cv for liquid water

5.  Both (a) and (c)

5

Both (a) and (c)

Explanation :
No Explanation available for this question

1.  P=1/3 E

2.  P=3E/2

3.  P=2/3 E

4.  P=E/3

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