#### Question

Write one statement of first law of thermodyamics and its mathematical expression.

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#### Solution

**First law of thermodynamics:-**

If the quantity of heat supplied to a system is capable of doing work, then the quantity of heat absorbed by the system is equal to the sum of the increase in the internal energy of the system and the external work done by it.

The equation which supports the first law of thermodynamics mathematically is

ΔU = q + w

When expressed in the differential form, the same relationship takes the following form:

dQ = dU + dL

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Solution for question: Write one statement of first law of thermodyamics and its mathematical expression concept: null - First Law of Thermodynamics. For the courses HSC Science (General) , HSC Science (Electronics), HSC Science (Computer Science)