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PhysicsJEE Main 21 Jan 2026, Shift 1·Q2·MCQ·Easy–moderate

Thermal Properties of Matter · Calorimetry and change of state

A gas based geyser heats water flowing at the rate of 5.0 litres per minute from 27∘27^\circC to 87∘87^\circC. The rate of consumption of the gas is g/s. (Take heat of combustion of gas =5.0×104= 5.0\times10^{4} J/g) specific heat capacity of water =4200= 4200 J/kg. ∘^\circC
  1. (1)2.1
  2. (2)4.2
  3. (3)0.42
  4. (4)0.21

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