Chemistry, 18.10.2019 03:30 delmi02bazidera

7. a 5kg copper bar initially at 300'c is placed on top of a 1 kg block of ice at -5°c at atmospheric pressure. assume no heat losses to the surroundings a. calculate the final temperature of the system after thermal equilibrium b. what initial temperature of the 5 kg copper bar is needed to raise the temperature of 1 kg block of ice from 5°c to 70°c? c. what mass of copper at 300'c must be placed to vaporize a 1-kg block of ice at -5°c to steam at 110°c? data for copper and water c. cu (s) - 0.385 j/g-k ahh.01 - 334 jg c. (h0 (s) - 2.06 j/g- k a hp. (h o1 - 2,261 j/g c. [h20 (1-4.18 j/gk c. [h0 - 2.02 j/gk

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 21:30, KnMcdonaldk93906

Which substances have the lowest melting points: ionic covalent, or metallic

Answers: 1

continue

Chemistry, 22.06.2019 13:30, richardwalker8ourhg2

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

Answers: 1

continue

Chemistry, 22.06.2019 18:00, jeepjose58

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

Answers: 1

continue

Chemistry, 23.06.2019 04:00, izzyp619

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.

Answers: 3

continue

You know the right answer?

7. a 5kg copper bar initially at 300'c is placed on top of a 1 kg block of ice at -5°c at atmospheri...