AP EAMCET Engineering 17 Sep 2020 Shift 1 Paper

If resulting temperature of the mixture is T∘C then
Heat gained by 50g water at 10∘C,
H‌gain ‌=mc∆T=50c(T−10)
Heat lost by 50g of water at 100∘C
H‌loss ‌=mc∆T=50c(100−T)
According to principle of calorimetry,
Heat gain = Heat loss
⇒‌‌H‌gain ‌=H‌loss ‌
⇒‌‌50c(T−10)=50c(100−T)
⇒‌‌2T=110
T=55∘C