Verified answer

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.Et = 1/2 K.E

• To determine the temperature for gas molecules, let's apply the energy gas equation.

. We know that

• 3/2nRT t * 2 = 1/2 * 3 / 2 nRT t1 (cutting both sides).

.Now

E * 1 / E * 2 = 3/2 * RT * 1 / 3 / 2 * RT * 2

.1/1 / 2 = 400 / T * 2

.T * 2 = 1/2 * 400

• T * 2 = 200K.

T * 2 = - 73.15 deg * C

the answer would be

Explanation:

73.15