Answer:
The new pressure is 4 times of the initial pressure.
Explanation:
Given that,
The pressure of an ideal gas is 4 atm.
We need to find the change in the pressure of the gas if the temperature by a factor of 4.
We know that,
PV = nKT ....(1)
P = pressure, V = volume, T = temperature
Let P' is the new pressure of the gas. So,
P'V= nK(4T) ......(2)
Dividing equation (1) and (2) we get :
It means that the new pressure is 4 times of the initial pressure.
because a chemical change takes time
Answer:
Option a.
Explanation:
The correct sequence considering closest to farthest distance from the center, i.e., sun of the solar system is:
Starting from the Sun, the next comes the inner planet or what we call the terrestrial planet of our solar system which are mainly composed of rocks and mainly silicate rocks and metals. Some examples of such planets are: mercury, Earth, Mars and Venus.
After that comes the asteroid belt (a disc full of asteroids) which is in between the Jupiter and Mars separating Terrestrial and Jovian planets.
This is then followed by Jovian planets which are composed oh helium and Hydrogen and are known as gas Giants.
Jupiter, Uranus, Saturn and Neptune comes under the Jovian planets and then Kuiper belt(consists of the remains of the early history of our solar system) follows originating at Neptune's orbit and stretching beyond Pluto.
Answer:
0.0003
Explanation:
In the rules of Sig Figs, all zeros before with decimals are not sigificant. I.E. 0.00000000000000009. Despite how many 0's there are, only the 9 is significant. Zeros before a number is not significant. In 100, only the one is signficant in 100. with a dot at the end, the one and the two zeros are significant. hope this helps.
Answer: B, Acceleration is defined as velocity divided by the time interval.