Achemist carefully measures the amount of heat needed to raise the temperature of a 894.0 g sample of a pure substance from -5.8c to 17.5c. the experiment shows that 4.90kjs of heat are needed. what can the chemist report for the specific heat capacity of the substance? (round your answer to 3 significant digits.)

Answer : The specific heat of substance is

Explanation :

Formula used :

or,

where,

Q = heat needed = 4.90 kJ  = 4900 J

m = mass of sample = 894.0 g

c = specific heat of substance = ?

= initial temperature  =

= final temperature  =

Now put all the given value in the above formula, we get:

Therefore, the specific heat of substance is

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

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.