7 an inventor claims that an engine produces 130kw with a fuel consump
7. An inventor claims that an engine produces 130kW with a fuel consumption of20kg/h. The fuel has a chemical energy of 40,000KJ/kg. The energy is received at a mean temperature of 500 °C and is rejected at a mean temperature of 50°C.Which laws of thermodynamics are violated? Explain your answer. (30 point) (a) First law only (b) Second law only (c) Both first and second laws (d) Neither first nor second laws
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