fbpx

Mechanical equivalent of heat – problems and solutions

1. 2 kcal (kilocalorie) = ….. calorie ?

Solution

1 kcal = 1000 calorie

2 kcal = 2 (1000 calorie) = 2000 calorie

2. 4 Calorie = ….. calorie ?

Solution

1 Calorie (a Capital C) = 1 kcal = 1000 calorie

4 Calorie = 4 (1000 calorie) = 4000 calorie

3. 10 calorie = ….. Joule ?

Solution

1 calorie = 4.186 Joule

10 calorie = 10 (4.186 Joule) = 41.86 Joule

See also  Radial acceleration – problems and solutions

4. 5 kcal = ….. Joule ?

Solution

1 kcal = 1000 calorie = 4186 Joule

5 kcal = 5 (4186 Joule) = 20930 Joule

5. 2000 Joule = ….. kcal ?

Solution

4186 Joule = 1 kcal

8372 Joule = 8372 / 4186 = 2 kcal

2000 Joule = 2000 / 4186 = 0.4777 kcal

[wpdm_package id=’706′]

  1. Converting temperature scales
  2. Linear expansion
  3. Area expansion
  4. Volume expansion
  5. Heat
  6. Mechanical equivalent of heat
  7. Specific heat and heat capacity
  8. Latent heat, the heat of fusion, the heat of vaporization
  9. Energy conservation for heat transfer

Print Friendly, PDF & Email

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Discover more from Physics

Subscribe now to keep reading and get access to the full archive.

Continue reading