A 2.8 g sample of pure metal requires 10.1 J of energy to change its temperature from 21°C to 36°C. What is this metal? Substance Specific H

Question

A 2.8 g sample of pure metal requires 10.1 J of energy to change its temperature from 21°C to 36°C. What is this metal? Substance Specific Heat Gold 0.129 J/g °C Silver 0.237 J/g °C Copper 0.385 J/g °C Water 4.18 J/g °C​

in progress 0
Hồng Cúc 5 months 2021-08-07T12:44:24+00:00 1 Answers 64 views 0

Answers ( )

  1. thuthuy
    0
    2021-08-07T12:46:04+00:00
    Reply

    Answer:

    Silver 0.237 J/g °C

    Explanation:

    We know that the heat required to raise the temperature of a given mass of a substance through a given temperature rise is given by;

    H = mcθ

    Where;

    m = mass of the body

    c = specific heat capacity of the body

    θ = temperature rise

    10.1 J = 2.8 g * c * (36°C – 21°C)

    c = 10.1 J /  2.8 g * (36°C – 21°C)

    c = 0.24 J/g °C

Leave an answer

Browse

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