Question

2kg of water at 30 C is poured into a 1kg copper beaker at 20 C.

Answer 1

The temperature of the water and copper beaker be together is 29.6⁰C.

What is the equilibrium temperature of both substance?

The final temperature or equilibrium temperature of the water and copper beaker is calculated by applying the principle of conservation of energy.

Heat lost by the water = Heat gained by the copper beaker

mcΔθ (water) = mcΔθ (copper)

where;

• m is mass
• c is specific heat capacity
• Δθ is change in temperature

m₁c₁(T₁ - T) = m₂c₂(T - T₂)

where;

• T₁ is the initial temperature of water
• T₂ is the initial temperature of copper beaker
• T is the equilibrium temperature

Specific heat capacity of copper, c₂ = 389 J/kgK

Specific heat capacity of water , c₁ = 4200 J/kgK

(2)(4200)(30 - T) = (1)(389)(T - 20)

252,000 - 8400T = 389T - 7780

259,780 = 8789T

T = 259,780 /8789

T = 29.6⁰C

Learn more about equilibrium temperature here: brainly.com/question/8925446

#SPJ1