What is the change in internal energy (in J) of a system that releases 954 J of thermal energy to its surroundings and has 166 cal of work done on it

259.456 J

Explanation:

Given that,

Work done on the system = 166 cal

The systam releases 954 J of thermal energy to its surroundings

We need to find the change in internal energy. It can be given by using the first law of thermodynamics as follows :

W = 166 cal = 694.544 (1cal = 4.184 J)

So, the change in internal energy of the system is 259.456 J.

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