opamp comparator not working

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devil6600

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i want to switch on and off a dc fan using mosfet depending upon lm35 output. so i build the below circuit, but it does not work. can some one please tell what i am doing wrong?

op amp pin 2 is at 0.25v and pin 3 at 0.32v
R11 is not connected.
VCC is 12v

 

Review LM741 input voltage range specification to understand why the circuit can't work with this OP and single supply.

R11 will be needed for sure, R10 can be omitted.

The circuit will switch-off the fan when temperature rises, not the intended operation, I guess.
 

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