Question

a mass of 1.4 kg of water at 22 degrees celcius is poured from a height of 2.5 m into a vessel containing 5.0 kg of water at 22 degrees celcius. How much does the internal enetgy of the 6.4 kg of water increase? Is it likely that the water temperature increases? Explain

Answer 1

Step-by-step explanation:

Given

mass of water at
`22^(\circ)C, m_w=1.4 kg`

Height of water
`h=2.5 m`

Internal Energy is defined as Energy Posses by all the molecules except macroscopic Kinetic and Potential Energy

So Potential Energy of water is used to increase the internal Energy

Potential Energy
`U=mgh`

`U=1.4* 9.8* 2.5=34.3 J`

this Energy increase the internal Energy

Since Internal Energy is a function of Temperature so with increase in internal Energy will cause the temperature to rise.