Seudónimo Seudónimo

18-07-2018
Chemistry

contestada

how many kilojoules of energy are necessary to raise the temperature of 3 kilograms of cast iron from 30 degrees Celsius to 120 degrees Celsius?

Respuesta :

ralphwx1 ralphwx1

18-07-2018

Specific heat of cast iron is 0.46 kJ / kg K.

Energy change = 0.46 kJ / kg K * 3 kg * (120 - 30) K = 124.2 kJ

Answer Link

Otras preguntas

What would happen if Thomas Jefferson decides not to purchase Louisiana territory

The nth term of a sequence is 3n+2a)work out first three term of sequence.b)work out the tenth term of the sequences

In the ninteenth century,why was it more nessesary for art to provide accyrate represemtations of life and objects

What type of software has been developed to enable users to make use of the vast amount of data being collected and organized today? A. Database software B. Wor

What is the solution of the system of equations? 6x - 2y = 4 -9x + 3y = 12 A.) (0,-2) B.) no solution C.) (-2,4) D.) infinitely many solutions

for an object that has positive constant acceleration what does the speed vs time graph look like

The distance between the cities Atlanta and Indianapolis is 540 miles. A motorcycle's speed is 48 mph. For a car it takes 2.25 hours less to cover same distance

Please help asap 25 pts

his question is based on the following sentence: Either you must stop eating my food from the refrigerator or you must pay me for it. 9. What type of conjunct

CAN SOMEONE HELP ME PLEASE ASAP