Chemistry, 19.07.2019 21:30 tanaemichel

An ron ball with a diameter of d = 5 cm (λ = 60 w/mk, c.-460 j/kgk: rho = 7850 kg/m") originally had a temperature ta 225°c, suddenly the ball is streamed in by a cold fluid stream with a temperature of 25°c; the heat transfer coefficient is anid-500 w/mk. the following must be calculated: a) the temperature in the centre of the sphere 2 minutes after the start of cooling. b) the temperature inside the ball at a surface distance of 1 cm and after 2 min. c) what is the dissipated heat from the ball per m2 after this time?

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 22:00, pobruce53

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution

Answers: 3

continue

Chemistry, 23.06.2019 14:00, edjiejwi

Cassandra made a venn diagram to compare and contrast the two stages of cellular respiration. which belongs in the area marked x? energy is released. oxygen is used up. glucose is broken down. carbon dioxide is used up.

Answers: 1

continue

Chemistry, 23.06.2019 18:00, rio1228p7c7vj

If cos x =sin(20 + x) and 0 < x < 90, the value of x is > 3 , 35 , 350answer is 35, free 50 points

Answers: 1

continue

Chemistry, 23.06.2019 18:20, zitterkoph

In a chemical reaction, the number of moles of the reactants a. should never be equal to the number of moles of the products. b. may or may not be equal to the number of moles of the products. c. depends on the amount of product that is formed. d. should always be equal to the number of moles of the products.

Answers: 3

continue

You know the right answer?

An ron ball with a diameter of d = 5 cm (λ = 60 w/mk, c.-460 j/kgk: rho = 7850 kg/m") originally ha...