kaitlynmireiter kaitlynmireiter

13-05-2020
Chemistry

contestada

heat of combustion of a substance with initial mass of 100g combusts, final mass of 95g and releasing 2000kj of energy

Respuesta :

oladayoademosu oladayoademosu

19-05-2020

Answer:

0.4 kJ/kg

Explanation:

The change in mass is 100 g - 95 g = 5 g = 0.005 kg

Energy released = 2000 kJ

eat of combustion = Energy released/change in mass = 2000 kJ/0.005 kg = 0.4 kJ/kg

Answer Link

Otras preguntas

An antonym shows how two words are similar true or false ?

The sum of twice a first number and 4 times the second number is 20. The first number is 3 times the second. Find the numbers

Ava lives 2 5/8 miles from school. Bella lives 2 2/3 times as far from the school as Ava. How far does Bella live from the school? A. 5 5/10 miles, B.

Yo ____________________ bajo y moreno. a. estoy b. soy

Someone help me on this one tooooooo!

Tim and Jenna are surveying their classmates about their summer reading. Their questions are given below: Tim: How many books recommended by the book reading cl

Which shows the correct substitution of the values a, b, and c from the equation -2=-x+x^2-4 into the quadratic formula?

Nearly 50% of water sources in the United States are believed to be polluted. Please select the best answer from the choices provided T F

What is one of the downsides of increasing economic interdependence? Question 6 options: higher prices for goods and services reduced tax revenues for all gover

Which of the following observations of children is the most objective? A. Joan was playing with blocks, building a structure, when Missy joined her. Jo