When you turn on the hot water to wash dishes, the water pipes have to heat up. How much heat is absorbed by a copper water pipe with a mass

Question

When you turn on the hot water to wash dishes, the water pipes have to heat up. How much heat is absorbed by a copper water pipe with a mass of 2.3 kg when its temperature is raised from 20.0C to 80.0 C?

in progress 0
Thanh Hà 4 years 2021-08-22T22:20:35+00:00 1 Answers 406 views 0

Answers ( )

  1. Tryphena
    0
    2021-08-22T22:22:04+00:00
    Reply

    Answer:

    53,130 J

    Explanation:

    When a certain substance absorbs heat, the temperature of the substance increases according to the equation:

    Q=mC\Delta T

    where

    Q is the amount of heat absorbed

    m is the mass of the substance

    C the specific heat capacity

    \Delta T the change in temperature of the substance

    In this problem:

    m = 2.3 kg is the mass of copper

    \Delta T=80.0C-20.0C=60.0^{\circ}C is the increase in temperature

    C=385J/kgC is the specific heat of copper

    So, the amount of heat absorbed is:

    Q=(2.3)(385)(60)=53,130 J

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )