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.

none, its a machine