What amount of heat was given off by the gas if its internal energy increased by 300 kJ
| March 17, 2021 | education
What amount of heat was given off by the gas if its internal energy increased by 300 kJ, and at the same time work was done on it equal to 0.6 MJ?
According to the first law of thermodynamics, the heat transferred to the system goes to change the internal energy and perform work against external forces: Q = dU + A.
Therefore, the gas received the amount of heat (300 KJ = 300,000 J, 0.6 MJ = 600,000 J):
Q = dU + A = 300000 J + 600000 J = 900000 J = 0.9 MJ.
Answer: 0.9 MJ of heat received
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