Disintegration Alpha. Explain what it's being used. The 238Pu decays by emission α according to the reaction: 238Pu → 234U + α + 5.49MeV with a period of 128 years. Being that of the 234U of 2.5 × 105 years. Estimate the initial mass of 238Pu needed to supply a minimum of 1kW of heat when 50 years have passed.

Disintegration Alpha. Explain what it's being used. The 238Pu decays by emission α according to the reaction: 238Pu → 234U + α + 5.49MeV with a period of 128 years. Being that of the 234U of 2.5 × 105 years. Estimate the initial mass of 238Pu needed to supply a minimum of 1kW of heat when 50 years have passed.