Why Does Hot Water Freeze Faster Than Cold Water?

💡 The Answer

• This counterintuitive phenomenon is called the Mpemba effect
• Named after Erasto Mpemba, a Tanzanian student who observed it in 1963
• Several theories attempt to explain it but none is universally accepted
• One theory: hot water evaporates faster, reducing volume and thus freezing quicker
• Another theory: convection currents in hot water create uneven cooling patterns
• Dissolved gases escape hot water more readily, potentially affecting freezing
• The effect depends on specific conditions and does not always occur