You have a 5-liter container with 1.30×10^24 molecules of ammonia gas (NH3) at STP.
2 answers:
<u>Answer:</u> The number of molecules of argon gas are
<u>Explanation:</u>
We are given:
Volume of container = 5 L
Number of molecules of ammonia gas =
STP conditions:
The temperature and pressure conditions are 273 K and 1 atm
Also, 1 mole of a gas occupies 22.4 L of gas
As, the conditions of same for argon gas. So, the number of molecules of argon gas will be equal to the number of molecules of ammonia gas.
Hence, the number of molecules of argon gas are
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Answer: The momentum of the child and milk together is 58.125 kg.m/s
Explanation:
Momentum is defined as the product of object's mass and velocity.
Mathematically,
where, p = momentum
m = mass of the object
v = velocity of the object
In the given question, we are given that a child of mass 21.0 kg is carrying a gallon of milk having mass 2.25 kg and running with a velocity of 2.5 m/s. Hence, the momentum by both milk and child will be:
....(1)
Given:
Putting values in equation 1, we get:
Hence, the momentum of the child and milk together is 58.125 kg.m/s