Question

at what temperature the kinetic energy will be half of its value at 127 degree Celsius​

Answer 1

At -73.15 °C the value of kinetic energy will be half of its value.

• The formula of the kinetic energy for gases is given as
• K.E t = 1/2 K.E
• To determine the temperature for gas molecules, let's apply the energy gas equation.
• We know that
• 3/2nRT t2 = 1/2 x 3/2 nRT t1 (cutting both sides)
• Now
• E1/E2 = 3/2RT1 ÷ 3/2RT2
• 1 ÷ 1/2 = 400 / T2
• T2 = 1/2 x 400
• T2 = 200 K
• T2 = -73.15 °C

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