Question

Suppose that 1 / of water is heated for a certain time to rise and its temperature by 2°C. If 2 l of water is heated for the same time, by how much will its temperature.

Answer 1

Mass of 1 litre of water (m₁ ) = 1 kg ; ∆T₁ = 2°C 

Mass of 2 litres of water (m₂ ) = 2 kg ; ∆ T₂ = ? 

Time duration is same. So same heat is absorbed by water in both the cases 

⇒ Q₁ = Q₂

 m₁S(∆T₁) = m₂ S (∆T₂)

So the rise in temperature for 2 kg of water = 1°C.