MIXING OF TEMPERATURE

Two solutions initially at 25^(@)C were mixed in an insulated bottle. One contains 400mL of 0.2N weak monoprotic acid solution. The other contains 100mL of 0.8N NaOH solution. After mixing the temperature rises to 26.17^(@)C . Calculate the heat of neutralisation of weak acid with NaOH . Assume density of final solution 1.0 g cm^(-3) . and speicific heat of final solution 4.2J g^(-1)K^(-1) .

n' number of liquids of masses m,2m,3m,4m, ….. Having specific heats S,2S,3S,4S, …. Are at temperatures t,2t,3t,4t …. Are mixed. The resultant temperature of mixture is

Three liquids A,B,C have initial temperature 10 deg C, 20 deg C and 30 deg C resp. A and B are mixed then temperature of mixture is 16 deg C. If B and C are mixed then temperature of mixed is 26 deg C. If A and C are mixed the temperature of mixture is

Equal masses of three liquids A,B and C are taken. Their initial temperature are 10^@C,25^@C and 40^@C respectively. When A and B are mixed the temperature of the mixutre is 19^@C . When B and C are mixed, the temperature of the mixture is 35^@C . Find the temperature if all three are mixed.

Equal masses of 3 liquids A,B and C have temperatures 10^@C, 25^@C and 40^@C respectively. If A and B are mixed, the mixture has a temperature of 15^@C . If B and C are mixed, the mixture has a temperature of 30^@ C . If A & C are mixed the temperature of the mixture is

5 g of ice at 0^@C and 20 g of water at 45^@C are mixed. The temperature of the mixture will be

When 20mL of a strong acid is added to 20mL of an alkali, the temperature rises by 5^(@)C . If 200mL of each liquid is mixed, the temperature rise will be