Simple energy balance equation around a laboratory water bath. Electrical Energy

Question

Simple energy balance equation around a laboratory water bath. Electrical Energy supplied is 1000Watt. Water in temperature is 20degrees Celsius and temperature out required is 40degrees Celsius. Water bath is open to atmosphere, hence have Water evaporating. Simple energy balance equation around a laboratory water bath. Electrical Energy supplied is 1000Watt. Water in temperature is 20degrees Celsius and temperature out required is 40degrees Celsius. Water bath is open to atmosphere, hence have Water evaporating.

Explanation / Answer

Heat required to change the temperature of water from 20 C to 40 c

Q = m x Cp x (T2-T1)

1000 J/s = m x 4.184 J/gC x (40-20)C

mass of water = 1000/(4.184 x 20) = 11.95 g/s

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.