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thermodynamics 1st law??
it states energy can neither be created nor be destroyed i.e. it remains conserved
change in u= q + w
u=internal energy
q= heat
w= wrk done by/on the system
if we apply heat in a system it woks ifo two cases............................... one to change nits internal energy other t do work............ it follows the conservation of energy.................. it is the thermodynamics first law.......
if you like it please approve my answer...........
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