11)

Heat required to raise the temperature of 1 mole of a substance by 1° is called

 

JEE Physics

A)

molar heat capacity

B)

specific heat

C)

water equivalent

 

D)

specific gravity

12)

If ∆G for a reaction is negative, you infer that the change is

JEE Physics

A)

spontaneous

B)

non-spontaneous

C)

reversible

D)

irrevrsible

 

E)

equilibrium

13)

What will be the value of ∆G for ice at 8°C temperature ?

JEE Physics

A)

One

 

 

 

B)

Zero

C)

Negative

D)

Positive

14)

One mole of which of the following has the highest entropy?

JEE Physics

A)

Liquid nitrogen

B)

Hydrogen gas

C)

Mercury

 

D)

Diamond

15)

Gibb's free energy G, enthalpy H and entropy S are interrelated as in 

JEE Physics

A)

G = H + TS

B)

 G = H - TS

C)

 G - TS = H

 

D)

 G = S = H

16)

Which is a condition for spontaneous ?

JEE Physics

A)

∆G < 0

B)

∆G = 0

C)

∆G > 0

 

D)

∆G ≥ 0

17)

In evaporation of water ∆H and ∆S are

JEE Physics

A)

+ , +

B)

+, -

C)

- , +

D)

 - , -

18)

Hess's law states that

JEE Physics

A)

the standard enthalpy of an overall reaction is the sum of the enthalpy changes in individual reactions

 

B)

enthalpy of formation of a compound is same as the enthalpy of decomposition of the compound into constituent elements, but with opposite sign

C)

at constant temperature the pressure of a gas is inversely proportional to its volume

D)

the mass of a gas dissolved per litre of a solvent is proportional to the pressure of the gas in equilibrium with the solution.

19)

Two electrons occupying the same orbital are distinguished by

JEE Physics

A)

 Principal quantum number

B)

 Magnetic quantum number

C)

 Spin quantum number

D)

 Azimuthal quantum number

20)

For a f-orbital the values of m are

JEE Physics

A)

- 1, 0, + 1

B)

0,+ 1, + 2, + 3

C)

-2, -1, 0, + 1,+ 2

 

D)

-3,- 2, -1, 0,+ 1,+ 2,+ 3