Part A A volume of 75.0 mLmL of H2OH2O is initially at room temperature (22.00 ∘C ∘C). A chilled steel rod at 2.00 ∘C ∘C is placed in the water. If the final temperature of the system is 21.00 ∘C ∘C , what is the mass of the steel bar?
Use the following values:

specific heat of water = 4.18 J/(g⋅∘C)J/(g⋅∘C)

specific heat of steel = 0.452 J/(g⋅∘C)J/(g⋅∘C)

Express your answer to three significant figures and include the appropriate units.

Part B
The specific heat of water is 4.18 J/(g⋅∘C)J/(g⋅∘C). Calculate the molar heat capacity of water.
Express your answer to three significant figures and include the appropriate units.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?