g a 144 g metal bar requires 2500 J to change its temperature from 23.5 to 100 degree C what is the specific heat of the metal

226.9 J·kg⁻¹·°C⁻¹

Explanation:

The specific heat of a substance can be defined as the amount is heat that has to be added in order for a given mass of the substance to increase its temperature:

In this case:

We input the data:

And calculate c:

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the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .