The air in a bicycle tire is bubbled through water and collected at . If the total volume of gas collected is 5.45 L at a temperature of and a pressure of 745 torr, how many moles of gas were in the bicycle tire?
Write down the known and unknown values.
To determine the evolved gas's partial pressure, use the gas-evolution equation based on Dalton's Law of
Convert the evolved gas's partial pressure into atmospheres.
To determine how many moles of the evolved gas there are, use the Ideal Gas Law.
Non-metals are generally poor conductors of heat and electricity. True or False
________ consists of a community of organisms interacting with their physical environment.
A clean nickel surface (work function 5.1eV), is exposed to light of wavelength 206nm. What is the maximum speed of the photoelectrons emitted from this surface?
What is voltage sensitivity of galvanometer?
A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior.The diameter of the pencil is 7 mm and the diameter of the graphite is 1 mm.If the length of the pencil is 14 cm, find the volume of the wood and that of the graphite.[Assume ]
Identify the simple machine used in bicycle.
Wheel and axle
What is physics in simple words?
What is lateral pressure?
Total Energy of the universe is constant?
Yes, of course
No, it’s conserved but not constant.
Only mechanical energy is conserved.
A capacitor has a capacity C and reactance X. If the capacitance and frequency both are doubled, the reactance will become
A truck on a straight road starts from rest, accelerating at , until it reaches a speed of . Then the truck travels at a constant speed for until the brakes are applied causing the truck to decelerate uniformly to stop it in additional .
(a) For how much time the truck is in motion?
(b) What is the average speed of the truck for its entire motion?
How was it shown that an atom has empty space?
Why do electrons flow from negative to positive and electric charge flows from positive to negative?
What are the laws of optics?
The volume of air taken in and out of the lungs during normal breathing is called___
inspiratory reserve volume
expiratory reserve volume