What amount of heat is required to increase the temperature of 75.0 grams of gold from 150°C to 250°C? The specific heat of gold

Question

3 years ago

5

is 0.13 J/g°C.A. 750 joulesB. 980 joulesC. 1300 joulesD. 1500 joulesE. 2500 joules

1 answer:

aleksley [76] · Answer 1 · 2022-07-23T22:38:43+03:00

Answer:

<h2>B. 980 joules</h2>

Explanation:

Given the following data

initial temperature T1= 150 °C

final temperature T2= 250 °C

specific heat of gold c= 0.13 J/g°C

mass of gold m= 75.0 grams

we can use the expression stated below to solve for the quantity of heat

$Q= mc(T2-T1)---------1$

Substituting our known data into the expression we can solve for the value of Q

$Q= 75*0.13(250-150)---------1\\\\Q= 75*0.13(100)\\\\Q= 975 Joules$

<em><u>The quantity of heat need to raise the temperature from 150°C to 250°C is 975 J</u></em>