How does air pressure affect the boiling point of a liquid apex?

There is always part of the liquid passing to the gas phase, and that gas makes a pressure – that is called vapor pressure. A liquid increases its vapor pressure as temperature rises, and the boiling point is reached when the vapor pressure of the liquid is equal to the atmospheric pressure. At a higher atmospheric pressure, the liquid will need to rise its temperature to an even higher temperature in order to reach enough vapor pressure. On the contrary, at a lower atmospheric pressure the liquid will reach the boiling point at a lower temperature.

This resource is commonly used for cooking. The pressure cooker makes food cook faster, because it works at 130°C instead of 100°C (at an atmosphere pressure of 1 atm, water can’t be at 130°C… because it is already vapor and it gets out of the pot). On the contrary, in sugar factories, they use a low pressure so that they can make water evaporate without cooking the sugar.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

need to see circuit to get time constant