Explain the air tanks used by a certain fire

Assignment Help Chemistry
Reference no: EM13546593

The air tanks used by a certain fire department each contain 25.0 l of air at a pressure of 200.0atm and a temperature of 293 k. Assume the average fire fighter exhales 0.500l of air per breath at a temperature of 310.0 k, exhales 30.0 times per mintues that the exhaled air is at a preassure of 1.00 ATM and the air behaved as an ideal gas. Calculate the time in hours before a fire fighter using such an air tank runs out of air.

Reference no: EM13546593

Questions Cloud

What is the distance traveled during the last second : The distance traveled is dependent on the initial velocity, the acceleration and the time of travel. What is the distance traveled during the last second
Initial acceleration of electron released from rest : A charge of 50 mC is placed on the y axis at y = 3.0 cm and a 77-mC charge is placed on the x axis at x = 4.0 cm. If both charges are held fixed, what is the magnitude of the initial acceleration of an electron released from rest at the origin?
Determine what is the weight of the bar : A bar 5.0 m long has its center of gravity 1.5 m from the heavy end. What is the weight of the bar
Angle does the velocity of electron make with magnet field : An electron moving at 3.60 103 m/s in a 1.10 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two answers between 0° and 180°. 1 ° (smaller value) 2 ° ..
Explain the air tanks used by a certain fire : The air tanks used by a certain fire department each contain 25.0 l of air at a pressure of 200.0atm and a temperature of 293 k. Assume the average fire fighter exhales 0.500l of air per breath at a temperature of 310.0 k
Find the mechanical work output of the engine : An aircraft engine takes in an amount 9000 of heat and discards an amount 6400 each cycle. What is the mechanical work output of the engine during one cycle
Assume that the planet has a uniform density : A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 1.85 hours. What is density of the planet? Assume that the planet has a uniform density.
What is the period of the orbit : A satellite of mass 310 kg is launched from a site on the Equator into a circular orbit at 8000 km above Earth's surface. DATA: Rearth=6.38×106 m. a) What is the acceleration of gravity at this altitude? b) What is the speed of the satellite? c) What..
Determine what is marys angular speed : Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. What is Mary's angular speed M and tangential speed vM

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the given standard reduction potential

Using the given standard reduction potential, calculate the amount of OF2 that is produced, and the electrode at which the OF2 is produced, upon the passage of 0.240 faradays through an aqueous KF solution.

  How many molecules of each gas are present

A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 31 degrees C and 1.00 atm?

  Compute the ka value for this acid

Phenylacetic acid C6H5CH2COOH is one of the substances that accumulates in the blood of people with phenylketonuria, an inherited disorder that can cause mental retardation or even death. A 0.085 M solution of C6H5CH2COOH has a pH of 2.68. Calcula..

  Explain how many milliliters of solution

How many milliliters of a 120 mL solution of 1.51 M BaCl2 must be used to make 16 mL of a solution that has a concentration of 0.3 M Cl-?

  The density of diamond is 351 gcmnbsp thenbsp

the density of diamond is 3.51 gcmnbsp . thenbsp international but non-si unit for weighingnbsp diamonds is the carat 1

  How many liters of 0.60 m hcl are needed

for the neutralization reaction involving HCl and Mg(OH)2, how many liters of 0.60 M HCl are needed to react with 45 g of a 2.5 M Mg(OH)2 solution? (density= 1.3 g/mL)

  What weight of sodium carbonate would have been present

When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water.

  How many grams of molality aqueous solution of nalorphine

Nalorphine (C19H21NO3), a relative morphine, is used to combat withdrawl symptoms in narcotics users. How many grams of a 0.0036 molality aqueous solution of nalorphine are needed to obtain a dose of 2.51mg

  The designate the bronsted-lowry acid and the bronsted-lowry

Designate the Bronsted-Lowry acid and the Bronsted-Lowry base on the left side of the equation below, and also designate the conjugate acid and the conjugate base on the right side

  Define the pressure exerted by the gas

If the volume remains constant as the temperature is raised, the pressure exerted by the gas: A. Remains constant B. Steadily decreases C. First decreases and then increases D. First increases and then decreases

  Explain what is the final energy and n value of the atom

A ground-state H atom absorbs a photon and makes a transition to the n = 4 energy level. It then emits a photon of energy 4.085 x 10^-19 J. What is the final energy and n value of the atom

  How to calculate the enthalpy of air at -80 degree

how to calculate the enthalpy of air at -80 degree centigrade temp and -161 degree centigrade at 37 barg and 4 barg

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd