AFTER EXPERIENCING A SHORTENED REST PERIOD; THE FLT CREW OF A B737 ATTEMPTED A TXWY TKOF IN A NIGHT OP WHICH WAS ABORTED AT LOW SPD AT PHX.

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WE WERE CLRED TO RWY 7R. WE TAXIED OUT AND MISTAKENLY LINED UP WITH TXWY F. WE CROSSED RWY 7L WHICH WAS CLOSED. WE WERE CLRED INTO POS AND BEFORE WE STOPPED WE WERE CLRED FOR TKOF AND BEGAN TO ROLL DOWN THE TXWY. THE FO DID THE BEFORE TKOF CHKLIST. AFTER PUSHING THE PWR UP I REALIZED THAT WE WERE ON THE TXWY. AT APPROX 60 KTS; THE FO HAD NOT SET TKOF PWR; I IMMEDIATELY PULLED THE THROTTLES BACK AND CALLED REJECT. THE FO TOLD THE FLT ATTENDANT AND PAX TO REMAIN SEATED. AFTER WE BEGAN THE REJECT THE TWR QUESTIONED OUR POS. THE FO REPLIED THAT WE WERE STOPPING. WE ROLLED TO A STOP AND DID THE REJECTED TKOF CHKLIST. THE AUTOBRAKES AND SPOILERS DID NOT DEPLOY. WE TURNED AROUND TO TAXI BACK AND PERFORMED A TKOF CHKLIST AND REVIEWED THE SID. WE WERE ON A PAIRING THAT BEGAN THIS DAY. OUR ARR IN PHX WAS AT XA36 LCL TIME; ABOUT 2 HRS AND 30 MINS LATE. WE WERE ON MINIMUM CREW REST; 9 HRS AND 45 MINS. WHILE ON OUR CREW REST AT APPROX XH45 LCL TIME THERE WAS A FIRE ALARM AT HOTEL; WHICH LASTED FOR APPROX 10 MINS OFF AND ON. IT WAS A FALSE ALARM. SUPPLEMENTAL INFO FROM ACN 622349: I LOOKED OUT THE FORWARD WINDOW AND REALIZED WE WERE ON A TXWY. JUST AT THAT TIME THE TWR CALLED AND ASKED US IF THAT WAS US ON TXWY F; I SAID IT WAS AND THAT WE HAD THINGS FIGURED OUT. THE TWR INSTRUCTED US TO MAKE A '180 DEG' AND TAXI TO RWY 7R.