Answer:
The following are examples of scientific questions
How fast do cheetahs run?
Does adding fertilizer to the soil help plants grow faster?
What do pelicans eat?
Why are my neighbors going to the mall?
Explanation:
An essential part of science is asking questions.
A good scientific question is that it can be answered by direct observations or with scientific tools.
How fast do cheetahs run?
Does adding fertilizer to the soil help plants grow faster?
What do pelicans eat?
Why are my neighbors going to the mall?
Examples of questions that are not scientific are based on values or opinions like what people believe is right or wrong, or beautiful or ugly.
Do fish like living in aquariums?
Does my dog like her bone better than her Frisbee?
The answer is relative dating.
Answer:
5.6L
Explanation:
Given parameters:
number of moles = 0.25mol
pressure on gas = 1atm
temperature = 273K
Gas constant R = 0.0821Latm/molK
Unknown:
Volume of gas = ?
Solution:
Using the ideal gas equation, we can solve this problem. The equation is a combination of the three gas laws: Boyle's law, Charles's law and Avogadro's law.
It is mathematically expressed as;
PV = nRT
where P is the pressure
V is the volume
R is the gas constant
T is the temperature
n is the number of moles
All the parameters are in the appropriate units and we simply solve for the volume of the gas;
1 x V = 0.25 x 0.0821 x 273
V = 5.6L