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Heat and Thermodynamics question

2017 · Shift 0 · Q57
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Heat and Thermodynamics question

2017 · Shift 0 · Q57

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
The temperature of an open room of volume 30 m3 increases from 17oC to 27oC due to the sunshine. The atmospheric pressure in the room remains 1 ×\times× 105 Pa. If Ni and Nf are the number of molecules in the room before and after heating, then Nf – Ni will be :
  1. A
    - 1.61 ×\times× 1023
  2. B
    1.38 ×\times× 1023
  3. C
    2.5 ×\times× 1025
  4. D
    - 2.5 ×\times× 1025
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