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Solution


Q.

The kinetic energy of translation of the molecules in 50 g of CO2 gas at 17°C is:          [2025]
1 3986.3 J  
2 4102.8 J  
3 4205.5 J  
4 3582.7 J  

Ans.

(2)

Kinetic energy of translation =32nRT

n=50 g44 g=2522mol

T = 17°C = 290 K

 Kinetic energy of translation

(KE)Translational=32(2522)(8.3)(290) J=4102.8 J