Solve the following problems :
A iron block at temperature 80 ⁰C is dipped in water inside the calorimeter at temperature 25 ⁰C . If mass of the block is 500 g and that of water is 266 g . What will be the final temperature attained by all the three ?

Solve the following problems : 20 g of water is given 2090 j of heat . Determine the change in the temperature of water .

If 50 gm of water at 0^@C is added to 250 gm of water at 90^@C . Find the final temperature

If water of mass 60g and temperature 60⁰C is mixed with water of mass 60g and temperature 40⁰C , what will be the maximum temperature of the mixture ?

Solve the following problems : If the temperature of water changes by 10 ⁰C on giving 300 cal of heat , what is the mass of water ?

Solve the following examples / numeriacal problems: When water of mass 70 g and temperatue 50⁰C is added to water of mass 30g , the maximum temperature of the mixture is found to be 41⁰C . Find the temperature of water of mass 30g before hot water was added to it.

Water of mass 200g and temperature 30⁰C is taken in a copper calorimeter of mass 50g and temperature 30⁰C .A copper sphere of mass 100g and temperature 100⁰C is released into it. What will be the maximum temperature of the mixture ? [ c (water)= 1 cal/g ⁰C, C (copper) = 0.1 cal/g ⁰C ]

Solve the following examples / numeriacl problems: If steam of mass 100 g and temperature 100⁰C is released on an ice slab of temperature 0⁰C , how much ice will melt?

Solve the following problems : A bridge is made from 20 m long iron rods . At temperature 18 ⁰C , the distance between two rods is 0.4 cm . Up to what temperature will the bridge be in good shape ?