Question

A total of 198 J of work is done on a gaseous refrigerant as it undergoes compression. If the internal energy of the gas increases by 121 J during the process, what is the total amount of energy transferred as heat? *​

Answer 1

Given:-

Work done on a refrigerant, W=198 J

Change in Internal Energy, $\Delta U$=121 J

To Find:-

Amount of heat transferred.

Explanation:-

Since work is done on the refrigerant, therefore use (-)ve sign on the work done.

$\Rightarrow$ W= -198 J , $\Delta U=121J$

$\text{From first law of thermodynamics, }\\\\Q=\Delta U+W\\\\\Rightarrow Q=121-198=-77J$

(-)ve sign shows that heat is released from the system.

Answer 2

Answer:18381

Explanation:

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