Answer:
127K
Explanation:
Recall that the density of a gas (ρ) is related to the molar mass of the gas (M), the ideal gas constant (R), and the temperature in Kelvin (T). This relationship is described by the equation below.
ρ=PMRT
We are asked to solve for the temperature at which neon gas, Ne(g), will have a density of ρ=1.45gL. Rearrange the equation above to solve for T and substitute the given values into the equation.
ρT=PMRT=PMRρ=(0.750atm)(20.180gmol)(0.08206L atmmol K)(1.45gL)=127.2K
Therefore, after rounding to three significant figures, we find that the temperature is approximately 127K.
Answer:
v = 300 mph due South.
Explanation:
Given that,
The Princess cruise ship left San Francisco and traveled south for 8 hours at a speed of 30mph.
We need to find the velocity of the ship. It can be calculated by total distance divided by total time taken.
Velocity is a vector quantity i.e. it has both magnitude and direction. On the other hand, the speed has only magnitude (scalar quantity).
In this case it is mentioned that the cruise is travelling south with a speed of 300 mph.
Hence, the velocity is 300 mph in South direction.
Answer:
The Periodic Table organizes chemical elements according to the number of protons that each has in its atomic nucleus
Answer: create more healthy products for the soil and animals
Explanation:
Answer:
Interacting with animals has been shown to decrease levels of cortisol (a stress-related hormone) and lower blood pressure. Other studies have found that animals can reduce loneliness, increase feelings of social support, and boost your mood.
Explanation:
