How many kilojoules of energy would be required to heat a 225g block of aluminum from 23.0 C to 73.5 C? Specific Heat Capacity of Aluminum: 0.897 J/g C

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.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock