i course: CHEM × / D Enthalpy EC c1 Mail-ehuang 1 e it 13.2 Kg C3He D Student Ce

Question

i course: CHEM × / D Enthalpy EC c1 Mail-ehuang 1 e it 13.2 Kg C3He D Student Center x Gator Scheduler × Upper Division X x × O file:///C:/Users/En%20Fa/Downloads/Enthalpy%20EC%20c1 15.pdf Enthalpy EC c115 5. A block of copper of unknown mass has an initial temperature of 65.4°C. It is immersed in a beaker containing 95.7g H20 at 22.7°C. Once the heat transfer is complete, the temperature of the water and the block is 24.2°C-What is the mass if the copper block? Things to consider CuC 0.385 Jig°C H20 Cs = 4.184 J/g°C O Type here to search ^ ENG 10:54AM 11/27/2017

Explanation / Answer

The heat released by the block of copper will be equal to the heat gained by the water

So using the formula Q = m . c. Delta T

we get :

mCu x 0.385 x (24.2 - 65.4 ) = - 95.7 x 4.184 x (24.2 - 22.7)

mCu = 37.86 grams

So the mass of copper block will be 37.86 grams

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

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