Heating, specific heat and latent heat

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Question 32
Easy

In a cryogenic laboratory, liquid nitrogen is vaporised inside a cooling jacket to cool a superconducting magnet coil from 293 K to 77 K.

Give two reasons why the actual mass of liquid nitrogen required to cool the coil to 77 K is greater than the calculated value of 6.2 kg.

[2]

Heating, specific heat and latent heat Questions

  1. GCSE
  2. /Physics
  3. /Heating, specific heat and latent heat