Who among the following improved the steam engine and patented the separate condenser in 1769?
- A.James Hargreaves
- B.Richard Arkwright
- C.James Watt
- D.John Kay
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Watt added a separate condenser to the earlier Newcomen engine, patenting it in 1769, which made the steam engine efficient enough to drive factories, mines, railways and ships, and the unit of power is named after him.
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