Calculate the kinetic energy of 5 moles of O_2 " at " 0^@C. (R = 8.31 xx 10^7 " ergs " K^(-1) mol^(-1))

Calculate the kinetic energy of 5 moles of O_2 " at " 0^@C. (R = 8.31

1.	Calculate the kinetic energy of 5 moles of O_2 " at " 0^@C. (R = 8.31 xx 10^7 " ergs " K^(-1) mol^(-1))
Answer» SOLUTION :The kinetic energy of one mole of a gas is given by `E_k = 3/2 RT` Therefore, for 5 moles of `O_2 " at " 0^@C (273 K)` `E_K = 5 xx 3/2 RT` `= 5XX 3/2xx 8.31 xx 10^7 xx 273` `= 1.70 xx 10^(11)` ergs HENCE, the kinetic energy of five moles of `O_2 " at " 0^@C " is " 1.70 xx 10^(11)` ergs.