Navigate

The amount of heat energy required to raise the temperature of 1 g of Helium

The amount of heat energy required to raise the temperature of 1g of Helium at NTP, from T₁K to T₂K is

Options

(a) (3/2) Nₐkв (T₂ – T₁)
(b) (3/4) Nₐkв (T₂ – T₁)
(c) (3/2) Nₐkв (T₂ / T₁)
(d) (3/8) Nₐkв (T₂ – T₁)

Correct Answer:

(3/8) Nₐkв (T₂ – T₁)

Explanation:

From first law of thermodynamics ∆Q = ∆U + ∆W
= (3/2) . (1/4) R (T₂ – T₁) + 0
= (3/8) Nₐkв (T₂ – T₁) [Since K = R / N ]

NEET2013
admin:

Related Questions

  1. A ray of light is incident at an angle of incidence i, on one face of a prism
  2. A point source is kept at a distnace 1000m has an illumination I. To change the illumination
  3. When the angle of incidence is 60° on the surface of a glass slab, it is found
  4. Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes
  5. A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance