Liquid A of specific heat capacity 1 J g⁻¹ K⁻¹ at a temperature of $50^{\circ} C$ is mixed with 100g of a liquid B of specific heat capacity 2 J g⁻¹ K⁻¹ at $30^{\circ} C$ .The final temperature of mixture becomes $40^{\circ} C$ . Find the mass of liquid A.

Liquid A of specific heat capacity $0.84 J g^{- 1} k^{- 1}$ at a temperature of $50^{\circ} C$ is mixed with $200 g$ of a liquid B of specific heat capacity $2.1 J g^{- 1} k^{- 1}$ at $30^{\circ} C$ . The final temperature of mixture becomes $42^{\circ} C$ . The mass of liquid A (in $g$ ) will be

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A liquid P if specific heat capacity 2400Jkg−1K−1 and at 70oC is mixed with another liquid R of specific heat capacity 1000Jkg−1K−1 at 30oC. After mixing, the final temperature of the mixture is 40oC. Find the ratio of the mass of the liquids mixed?

The correct option is D 36 : 5Let mass of the liquids P and R be mP and mR respectively.According to calorimeter,Heat lost by liquid P = Heat gained by liquid R.∴mPCP(70−40)=mRCR(40−30)mP(2400)(30)=mR(1000)(10)mPmR=2400×401000×10=485mPmR=48:5

A liquid P if specific heat capacity $2400 J k g^{- 1} K^{- 1}$ and at $70^{o} C$ is mixed with another liquid R of specific heat capacity $1000 J k g^{- 1} K^{- 1}$ at $30^{o} C$ . After mixing, the final temperature of the mixture is $40^{o} C$ . Find the ratio of the mass of the liquids mixed?