1 atm equals to:

To convert an atmosphere measurement to a torr measurement. We need to multiply the pressure by the conversion ratio. One atmosphere is equal to 760 torr. so we use the simple formula to convert:

torr = atmospheres × 760

The pressure in torr is equal to the atmospheres multiplied by 760.

Hence the correct answer is option C. 1 atm equals to 760 torr.