Answer to Question #318980 in General Chemistry for Chuchutvvvvvv

Question

1. The first law of thermodynamics which states that energy cannot be created or destroyed but could be converted to from one form to another.

a. Law of multiple proportion

c. Law of conservation of mass

b. Law of definite proportion

d. Law of conservation of energy

3. Which of the following describes what happens when you hold an ice cube in your hand?

a. Heat flows from the ice to your hand, melting of ice is exothermic

b. heat flows from the ice to your hand, melting of ice is endothermic

c. heat flows from your hand to the ice, melting of ice is exothermic

d. heat flows from your hand to the ice, melting of ice is endothermic

4. Baking of cookies is

a. endothermic c. either a or b

b. exothermic d. cannot be determined

5. What is the ∆𝐸 for a gas that releases 43 J of heat and has 120 J of work done on it.

a. 55 J b. 77 J c. 99 J d. 110 J

Answer 1

1.d

3. d

4. a

5. b