Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

Understanding of Chemistry basics.

1. Boltzmann's critics claimed his work was unscientific because he______.
a. Presented his ideas in an excessively emotional manner
b. proposed that entropy constantly increased , an idea with depressing implications
c. used mathematical formulae that were incomprehensible to most of his peers
d. proposed hypotheses that were untestable and of little practical use
e. based his work on the behaviour of atoms , which cloud not then be observed.

2. When food packaging lists the calories contained in the contents; numbers supplied are actually "Calories", each of which is equivalent to____ standard calories.
i. 10
ii.100
iii.1000
iv.10, 000
v. one million

3. In physics and chemistry, work is defined as ______
a. performing a task
b. expenditure of energy
c. the increase in disorder against a force
e. an increase in temperature

4. A high - energy bond is one that
a. gives up energy to form less- stable, low-energy bonds
b. gives up energy to form more- stable, low-energy bonds
c. requires a large amount of energy to hold together
d. requires a large amount of energy to give off heat
e. requires a large amount of energy to break

5.________ energy is stored and ______ energy is energy of moving objects.
a. Kinetic; nuclear
b. Kinetic ; potential
c. Potential; nuclear
d. potential ; kinetic
e. Nuclear; potential

6. Which of the following would not be an ex of potential energy?
i. a rolling billiard ball
ii. a motionless car
iii. a relaxed muscle
iv. a stick of butter
v. a boulder at the edge of a cliff

7. Which of the following would not be an ex of kinetic energy?
a. a person running
b. a car moving at 5 miles per hour
c. a flying bird
d. a tornado
e. all of these are exs of kinetic energy

8. The First Law of Thermodynamics states that___.
a. the total energy of in any process is constant.
b. the total energy on earth available to do work is constant.
c. energy is destroyed in processes that generates heat
d. energy is created during nuclear fission.
e. a and b.

9. The Second of law of thermodynamics states that_______.
a. the energy available to do work in the universe constantly decreases.
b. no process involving the conversion of energy is completely efficient.
c. when a process creates heat, it destroys total energy.
d. a and b.

10. Which of the following describes a situation that violates the second law of thermodynamics?
1. Enzymes
2. A Small child(under duress) sorts her rock collection into groups ordered by hardness.
3. Phospholipid molecules spontaneously assemble into a bilayered membrane.
4. A low-friction machine runs indefinitely in an isolated system.
5. Living systems evolve from simple to complex forms if supplied with energy over a long period of time.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M918909

Have any Question? 


Related Questions in Chemistry

Discussion 1 in this discussion consider how fats are

Discussion 1: In this discussion, consider how fats are digested and utilized in the body. Address the following questions: What enzyme is necessary for fat digestion?  Where is this enzyme produced and where does fat di ...

Analyzed individually two solutes have retention times of

Analyzed individually, two solutes have retention times of 17 s and 21 s with peak widths at half-maximum (w1/2) of 1.9 s and 2.8 s, respectively. If the two solutes are analyzed together, what would be the resolution on ...

Consider a string with a length of 545 cm tied at both end

Consider a string with a length of 54.5 cm tied at both end (like on a stringed instrument). If the frequency of the first harmonic on the string is 256 Hz, determine the speed of the wave in the string. Post your answer ...

In the following problem you must1 determine the correct

In the following problem you must: 1) Determine the correct formula for each reactant and product. 2) Determine the correctly balanced chemical equation. 3) Us the stoichiometry of the chemical equation to answer the que ...

If you eat a 48 g serving rice every fourth day and you

If you eat a 48 g serving rice every fourth day and you weigh 75 kg, what is your dose of inorganic arsenic (in µg per kg body weight per day) if the rice contains 386 µg kg -1 of total arsenic, 45% of which is inorganic ...

A mixture of gases has the partial pressures of 0308 atm

A mixture of gases has the partial pressures of 0.308 atm due to He, .259 atm due to N2, and the rest is due to O2. If the total pressure of the mixture is 752 mmHg, what is the partial pressure due to oxygen?

A 200 g sample of water with a temperature of 32c is added

A 200 g sample of water with a temperature of 32?C is added to 50 g water at 55?Cin an insulated container. What is the final temperature after thermal equilibrium is reached? The specific heat of water in the liquid sta ...

Identify the chemical components and the proportions

Identify the chemical components and the proportions necessary to achieve a buffer with the desired pH. Include relevant calculations in your answer.

A sealed container holds 100 mole of helium and 200 moles

A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen in mm Hg? Provide an answer correct to ...

In the reaction of meso-stilbene dibromide koh and

In the reaction of meso-stilbene dibromide, KOH and triethylene glycol and heat, if the KOH has a purity of 85% and the remainder is water; why did the mixture appear to boil?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro