<Tr> <Td> <Ul> <Li> History </Li> <Li> Culture </Li> </Ul> (show) <Table> <Tr> <Th> History </Th> </Tr> <Tr> <Td> <Ul> <Li> General </Li> <Li> Heat </Li> <Li> Entropy </Li> <Li> Gas laws </Li> </Ul> <Ul> <Li> "Perpetual motion" machines </Li> </Ul> </Td> </Tr> <Tr> <Th> Philosophy </Th> </Tr> <Tr> <Td> <Ul> <Li> Entropy and time </Li> <Li> Entropy and life </Li> <Li> Brownian ratchet </Li> <Li> Maxwell's demon </Li> <Li> Heat death paradox </Li> <Li> Loschmidt's paradox </Li> <Li> Synergetics </Li> </Ul> </Td> </Tr> <Tr> <Th> Theories </Th> </Tr> <Tr> <Td> <Ul> <Li> Caloric theory </Li> <Li> Theory of heat </Li> </Ul> <Ul> <Li> Vis viva ("living force") </Li> <Li> Mechanical equivalent of heat </Li> <Li> Motive power </Li> </Ul> </Td> </Tr> <Tr> <Th> Key publications </Th> </Tr> <Tr> <Td> <Ul> <Li> "An Experimental Enquiry Concerning...Heat" </Li> <Li> "On the Equilibrium of Heterogeneous Substances" </Li> <Li> "Reflections on the Motive Power of Fire" </Li> </Ul> </Td> </Tr> <Tr> <Th> Timelines </Th> </Tr> <Tr> <Td> <Ul> <Li> Thermodynamics </Li> <Li> Heat engines </Li> </Ul> </Td> </Tr> <Tr> <Th> <Ul> <Li> Art </Li> <Li> Education </Li> </Ul> </Th> </Tr> <Tr> <Td> <Ul> <Li> Maxwell's thermodynamic surface </Li> <Li> Entropy as energy dispersal </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Ul> <Li> History </Li> <Li> Culture </Li> </Ul> <Table> <Tr> <Th> History </Th> </Tr> <Tr> <Td> <Ul> <Li> General </Li> <Li> Heat </Li> <Li> Entropy </Li> <Li> Gas laws </Li> </Ul> <Ul> <Li> "Perpetual motion" machines </Li> </Ul> </Td> </Tr> <Tr> <Th> Philosophy </Th> </Tr> <Tr> <Td> <Ul> <Li> Entropy and time </Li> <Li> Entropy and life </Li> <Li> Brownian ratchet </Li> <Li> Maxwell's demon </Li> <Li> Heat death paradox </Li> <Li> Loschmidt's paradox </Li> <Li> Synergetics </Li> </Ul> </Td> </Tr> <Tr> <Th> Theories </Th> </Tr> <Tr> <Td> <Ul> <Li> Caloric theory </Li> <Li> Theory of heat </Li> </Ul> <Ul> <Li> Vis viva ("living force") </Li> <Li> Mechanical equivalent of heat </Li> <Li> Motive power </Li> </Ul> </Td> </Tr> <Tr> <Th> Key publications </Th> </Tr> <Tr> <Td> <Ul> <Li> "An Experimental Enquiry Concerning...Heat" </Li> <Li> "On the Equilibrium of Heterogeneous Substances" </Li> <Li> "Reflections on the Motive Power of Fire" </Li> </Ul> </Td> </Tr> <Tr> <Th> Timelines </Th> </Tr> <Tr> <Td> <Ul> <Li> Thermodynamics </Li> <Li> Heat engines </Li> </Ul> </Td> </Tr> <Tr> <Th> <Ul> <Li> Art </Li> <Li> Education </Li> </Ul> </Th> </Tr> <Tr> <Td> <Ul> <Li> Maxwell's thermodynamic surface </Li> <Li> Entropy as energy dispersal </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th> History </Th> </Tr>

Which is the most accurate description of how the coolant works in an engine