Question 527: Thermodynamics & KTG

Question

One $$kg$$ of a diatomic gas is at a pressure of $$8 	imes {10^4}\,N/{m^2}.$$ The density of the gas is $$4kg/{m^3}$$. What is the energy of the gas due to its thermal motion ?

Accepted Answer

$$Volume\,\, = \,\,{{mass} \over {density}} = {1 \over 4}{m^3}$$
$$K.E = {5 \over 2}PV$$
$$ = {5 \over 2} 	imes 8 	imes {10^4} 	imes {1 \over 4}$$
$$ = 5 	imes {10^4}J$$

Answer

$$5 	imes {10^4}\,J$$

Answer

$$6 	imes {10^4}\,J$$

Answer

$$7 	imes {10^4}\,J$$

Answer

$$3 	imes {10^4}\,J$$

Thermodynamics & KTG

One $kg of a diatomic gas is at a pressure of 8 \times {10^4}\,N/{m^2}. The density of the gas is 4kg/{m^3}$. What is the energy of the gas due to its thermal motion ?

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