3034780 3034780
  • 23-05-2021
  • Physics
contestada

How much heat is required to heat 2 kg of water from 25°C to 40°C?

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 28-05-2021

Answer:

126000 J

Explanation:

Applying,

Q = cm(t₂-t₁).................. Equation 1

Where Q = Amount of heat, c = specifc heat capacity of water, m = mass of water, t₁ = Initial temperature, t₂ = Final temperature.

From the question,

Given: m = 2 kg, t₁ = 25°C, t₂ = 40°C

Constant: c = 4200 J/kg.°C

Substitute these value into equation 1

Q = 2×4200(40-25)

Q = 2×4200×15

Q = 126000 J

Answer Link

Otras preguntas

Which of these describes a potential short story theme? A. Overwhelmed B. When you fall down, get back up again. C. The beach
A zone around your vehicle that is unencumbered is called an?
Line segment WX is the radius of circle X, and line segment ZY is the radius of circle Y. Points W, X, C, Y, and Z are all on line segment WZ. What is the area
A circle with a radius of 3cm sits inside a 8cm*7cm rectangle. What is the area of the shaded region? Round your final answer to the nearest hundredth.
¿Los jóvenes? Que (se sientan/se sienten) en la cocina para comer. *
Short stories have _____. only a few characters long descriptions many characters
who was the ruling of asoka heavily influenced by
What does a chemical bond do when it breaks
I need help immediately!!!!!!!! How do I find parallel lines with no graph? Say you have y=x-10, what is parallel to that? It makes no sense!!!!
can someone please please please help me with this i need help