A sample of nitrogen gas has a volume of 5.0 ml at a pressure of 1.50 atm. what is the pressure exerted by the gas if the volume increases to 30.0 ml, at constant temperature is 0.25atm.
On constant temperature, the pressure and volume relation become constant before and after the change in quantitities have occurred.
According to Boyle's Law,
P₁V₁ = P₂V₂
where, P₁ is pressure exerted by the gas initially
V₁ is the volume of gas initially
P₂ is pressure exerted by the gas finally
V₂ is the volume of gas finally
Given,
P₁ = 1.5 atm
V₁ = 5 ml
V₂ = 30 ml
P₂ =?
On substituting the given values in the above equation:
P₁V₁ = P₂V₂
1.5 atm × 5 ml = P₂ × 30 ml
P₂ = 0.25 atm
Hence, pressure exerted by the gas is 0.25atm.
Learn more about Boyle's Law here, brainly.com/question/1437490
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To solve this problem we will apply the concepts related to the Force of gravity from Newtonian theory for which it is necessary to
Where,
G = Gravitational universal constant
M = Mass of Earth
m = mass of Object
x = Distance between center of mass of the objects.
From this equation we can observe that the Force is inversely proportional to the squared distance between the two objects. The greater the distance, the lower the force of gravity and vice versa.
If you want to increase the force of gravity, you need to reduce the distance of the two. Therefore the correct option is B. Talk to the distance between them.
Answer:
The correct answers to the question are
The following statements about neurons are NOT true
A. The resting membrane potential is generally in the range of -40 mv to -75 mv.
C. Neurons repolarize by opening chloride channels on the membrane.
D. An action potential can occur when the neuron's sodium gates open.
Explanation:
A. The resting membrane potential is generally in the range of -40 mv to -75 mv.
Not true the resting potential for neurons range from -70 to -80 mv
B. Maintaining resting membrane potential requires the use of energy from ATP True
The potential of the membrane arises from the splitting of potassium ions from the intracellular anions by agents powered by ATP
C. Neurons repolarize by opening chloride channels on the membrane
Not True
Repolarization occurs by the outward transit of the positively charged K⁺ from the cell
D. An action potential can occur when the neuron's sodium gates open.
Not True
An action potential takes place once the neuron transmits information along an axon. An action potential results when different ions pass through the membrane of the neuron
Advantages of copper cables are that copper is an extremely powerful conductor of electricity and much more stable over time. It can withstand higher temperatures than aluminum and is more resistant to damage.
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Advantages of aluminum cables are that it is less expensive, easier to work with and light weight and so does not need structural support when strung over long distance.
Disadvantages: Aluminum is more susceptible to corrosion and requires periodic replacement. It needs much greater maintenance.
Advantages of steel cables are that steel does not rust, is fairly cheap and readily available. It has a higher tensile strength too.
Disadvantages: Steel cables are less ductile and are therefore more susceptible to fatigue.
