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Questions tagged 'Pressure'

10 questions

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Anonymous

Feb 11, 2025

What is the maximum acheivable amount of vacuum in inches?

What is the maximum achievable vacuum in inches, and what factors determine this limit?

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Nikki Wolff

Jan 15, 2025

Modern vacuum pumps make it easy to attain pressures of the order of 10^ -13 atm in the laboratory.?

At a pressure denoted as ( p ) and at an ordinary temperature of ( T = 300 \, \text{K} ), how many molecules are present in a volume ( V )? For this calculation, please use Avogadro's number (( N_A ))...

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Anonymous

Jan 02, 2025

A gas sample is heated from -20 degrees C to 57.0 degrees C and the volume is increased from 2.00 L to 4.50 L.?

A gas sample is heated from -20 degrees Celsius to 57.0 degrees Celsius, and its volume is increased from 2.00 liters to 4.50 liters. If the initial pressure of the gas is 0.110 atm, what is the final...

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Anonymous

Dec 22, 2024

A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273?

A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K? Please show your work. I would appreciate any help with this question, as I am unsure how to...

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Anonymous

Dec 02, 2024

explain how pumping air into a bicycle tire increases the pressure within the tire.?

Could you please explain how pumping air into a bicycle tire increases the pressure within the tire? Any assistance would be greatly appreciated! Thank you!

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Anonymous

Nov 24, 2024

What PSI should my tires be filled to.?

I recently installed 15-inch rims on my 1992 Tercel, replacing the stock 13-inch rims that came with the car. I purchased the recommended tire size for the new rims. After about two weeks, as the weat...

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Anonymous

Nov 16, 2024

A sample of N2O gas has a density of 2.90 g/L at 298 K. What must be the pressure of the gas (in mmHg)?

A sample of N2O gas has a density of 2.90 g/L at a temperature of 298 K. Using the Ideal Gas Law, what is the required pressure of the gas expressed in mmHg?

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Anonymous

Nov 08, 2024

pressure and physics question?

In a car lift, compressed air exerts a force on a piston with a radius of 5.00 cm. This pressure is transmitted to a second piston with a radius of 15.0 cm. a. What force must the compressed air exer...

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Anonymous

Nov 01, 2024

What is the mass of the liquid in the vat?

I have a 0.60-meter-diameter vat filled with liquid, and the vat is 2.7 meters deep. The pressure measured at the bottom of the vat is 1.5 atm. I attempted to solve this problem using the formula ( P...