unit 4 and 5

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Across
  1. 2. – Measure of a system’s thermal energy per unit temperature
  2. 4. – Sum of internal energy
  3. 5. Space – Volume occupied by a water in shell
  4. 7. Diesel – Scientist who gave the name to diesel cycle
  5. 12. -Process in which energy transfer and its effect transfer on the physical properties of substance
  6. 13. – Essential item to be fitted on the boiler for its safe working
Down
  1. 1. – Device which operates in a cycle maintains a body temperature lower than surrounding
  2. 3. – Hollow cast iron
  3. 6. – Name the external part of system
  4. 8. – Supported by the bearing of crankshaft
  5. 9. – change of state
  6. 10. – Machine in which both petrol and diesel engine have the same mechanism
  7. 11. Flow – Rate of flow of mass and energy across the control surface