Rhoda303 Rhoda303

08-06-2015
Chemistry

Answered

Heated bricks or blocks of iron were used long ago to warm beds. A 1.49 -kg block of iron heated to 155 Celsius would release how many joules of heat as it cooled to 22 Celsius ?

Answer :

kimeto3 kimeto3

08-06-2015

Specific heat capacity= Quantity of heat/massxΔT
Shc of iron (constant)= 0.4494J/³C for 1g
1.49kg=1490g
Q=1490x(22-155)x0.4494
Q=89057.598J

Answer Link

Other Questions

Nos mudamos a una nueva casa en pasado simple

Which is a dependent clause?A. during intermission, while we were discussing the performanceB. dodging frantically, a valet ran through the crowd and into the t

You have just applied for and been approved for a [tex]$\$[/tex]175,000[tex]$ mortgage. The rate quoted to you by the lender is $[/tex]5.5\%[tex]$ for a 30-year

On the occasion of International Women's Day, your school is organizing Mandal LevelSports Meet for girls of secondary level.Imagine you are the principal of yo

Which of the following choices is the best representation of the change in population (ΔP) if the current population size is P=100 ? Write your answer in terms

In what year did the 60 hour Clinical Mental Health Counseling degree become the standard?A. 2002B. 2009C. 2016D. 2014

ORGANIC CHEMISTRY TEST1. Which is the best-suited method for the separation of para and ortho-nitrophenols from a 1:1 mixture? A. Crystallisation B. Chromat

Are udemy certificates worth mentioning in a cv/resume?

Which of the following is a business-related consequence of failing software?a. Decreased productivityb. Damage to brand reputationc. Increased liabilitiesd. Al

2. Imagine you are Suhas/Sukanya, a student of Vidyarthi Bhavan, a residential school. You have just returned home for the summer break. Write a diary entry com

What does drainage basin mean in Social Studies?

Ms. Russell has 24 students in her class. 3/8 of the class went out for recess. 1/4 went to the library. The rest stayed in the classroom.a. What fraction of th

In the book night, compare how other boys treat their fathers with Eliezer's treatment of his own father.

the square root of 49 is how much less than four squared

how did Pericles change the government of Athens???

HELP+EXPLAIN PLEASE Describe how a sarcodine, such as amoeba, gets food.

What is the maximum mass of methane (CH4) that can be burned if only 1.0 g of oxygen is available and how do you figure it out?

Is desert a abiotic or biotic or both

How do you " find, to the nearest tenth of an inch, the diagonal of a square whose perimeter is 28 inches ?"

How do you " find, to the nearest tenth of an inch, the diagonal of a square whose perimeter is 28 inches ?"