If 400 kJ work is done by the system and 150 kJheat is given to system

1.	If 400 kJ work is done by the system and 150 kJheat is given to system then what will be effect oninternal energy?(1) Increases by 250 kJ. (2) Decreases by 250 kJ(3) Increases by 600 kJ (4) Decreases by 600 kJ
Answer» LET U be the total internal ENERGY When 400kJ work is DONE, internal energy becomes (U-400)kJ When 150kJ heat is GIVEN, internal energy becomes U-400+150=U-250 Hence the internal energy decreases by 250 Hope this is helpful to you Pls mark as brainliest...

If 400 kJ work is done by the system and 150 kJheat is given to system then what will be effect oninternal energy?(1) Increases by 250 kJ. (2) Decreases by 250 kJ(3) Increases by 600 kJ (4) Decreases by 600 kJ

Answer»

LET U be the total internal ENERGY

When 400kJ work is DONE, internal energy becomes (U-400)kJ

When 150kJ heat is GIVEN, internal energy becomes U-400+150=U-250

Hence the internal energy decreases by 250

Hope this is helpful to you

Pls mark as brainliest...