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

janelle practices basketball every afternoon in driveway.Each day,her goal is to make 4 more baskets than she made the day before. if she makes 10 baskets the f

A 600-N box is pushed up a ramp that is 2 meters high and 5 meters long. The person exerts a force of 300-N. What is the efficiency of the ramp?

tim makes 80 gallons of paint by mixing 48 gallons of green paint with 32 gallons of blue paint what part of every gallon is from green paint.

Colonists were angered by a restriction in the Intolerable Acts that required them to

which herbal remedy would most likely be used to treat a sunburn

Three fifths plus one half equals what

In 1967, a 30-second superbowl commercial cost $40,000. In 2000 a 30-second commercial cost $1,800,000. What was the percent of change in the cost of commercial

Native American knowledge helped European settlers in many ways. Which of the following best illustrates this idea? Some Native Americans converted to Christia

A particular computer takes 11 minutes to download a 44 minute TV show. How long will it take the computer to download a 1.5 hour movie?

long division 37 divided by 158