A8.40-l vessel contains 3.80 moles of ideal gas at a pressure of 1.60 ✕ 106 pa. (a) find the temperature of the gas. k (b) find the average kinetic energy of a gas molecule in the vessel. j (c) what additional information would you need if you were asked to find the average speed of a gas molecule?

Part a)

Part b)

Part c)

in order to find the average speed we need to know about the the gas molar mass or we need to know which gas it is.

Explanation:

Part a)

As per ideal gas equation we know that

here we know that

n = 3.80 moles

now from above equation we have

Part b)

Average kinetic energy of the gas is given as

here we know that

T = 425.6 K

now we have

Part c)

in order to find the average speed we need to know about the the gas molar mass or we need to know which gas it is.

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.