Question

In: Mechanical Engineering

1. True or false. The mass of a closed system cannot change. 2. True or false....

1. True or false. The mass of a closed system cannot change.

2. True or false. Fahrenheit scale cannot be used in thermodynamics relations.

3. True or false. An extensive property can be a function of time and location.

4. True or false. If a system is at steady state, then the density is uniform throughout the system.

5. True or false. All modes of heat transfer between two bodies must occur when the two bodies are in contact.

6. True or false. The volume of a closed system cannot change.

7. True or false. Fahrenheit scale is an absolute temperature scale in English units.

8. True or false. A system is at steady state if no more than one of its properties changes with time.

Expert Solution

1.TRUE

The system in which mass cannot transfer from system to surrounding is called closed system.

2. TRUE

All the thermodynamic relation is based on absolute zero temperature and all relation is based on the Kelvin scale

3. FALSE

The extensive property is a function of mass.

4.FALSE

In the steady state, the system state is constant with respect to time.

5.FALSE

In radiation heat transfer, there is no need to contact between two bodies.

6.FALSE

The volume of the closed system can change but mass cannot change.

7.FALSE

Kelvin scale is an absolute temperature scale.

8.FALSE

A system is at steady state if "no any" of its properties change with time.

samet mamat answered 2 years ago

1. A company's articles can contain provisions that cannot be altered True False 2. In relation...

1. A company's articles can contain provisions that cannot be altered True False 2. In relation to a company's contractual capacity, the ultra vires doctrine has been abolished. True False 3. Breach of any term in the statutory contract will allow either the company or a member to sue for breach of contract. True False 4. Under the Companies Act 2006, you find the objects of a company set out in the Memorandum of Association. True False 5. Companies incorporated...

Decide whether each of these statements is True (T) or False (F). A closed-loop control system:...

Decide whether each of these statements is True (T) or False (F). A closed-loop control system: (i) Has negative feedback. (ii) Responds to changes in conditions. 1. (i) T (ii) T 2. (i) T (ii) F 3. (i) F (ii) T 4. (i) F (ii) F 7. Decide whether each of these statements is True (T) or False (F). A closed-loop control system: (i) Has a measurement system which gives feedback of a signal which is a measure of the...

1)True or False: Ambiguity is a type of vagueness True False 2)True or False: When determining...

1)True or False: Ambiguity is a type of vagueness True False 2)True or False: When determining whether a report of an argument should be treated as an argument, it is important to consider the context in which the report is made. True True False 3) True or False: In a V argument with two premises, if one of the premises is false, then the argument is definitely weak True False 4) True or False: A report of an argument can...

1-Even on a gold standard, a central bank cannot go bankrupt. True False 2-The more layers...

1-Even on a gold standard, a central bank cannot go bankrupt. True False 2-The more layers there are in the banking system, the more the money supply can be expanded True False 3-If it wasn’t for their central bank, Canada would have been unable to survive the Great Depression True False 4-The problem with banks issuing their own bank notes is that this can cause inflation True False

1. True or False: Disaster Planning is not part of the BCP? 2. True or False:...

1. True or False: Disaster Planning is not part of the BCP? 2. True or False: you still need a BCP or DRP if you have business liability insurance, asset replacement insurance and natural disaster insurance 3. True or False: If a business cannot operate, the BCP assists in bringing the business back to life and operational readiness. 4. True or False: a BIA helps define the scope of the BCP itself. 5. True or False: The purpose of having...

1 Two events are mutually exclusive if they cannot occur at the same time. True False...

1 Two events are mutually exclusive if they cannot occur at the same time. True False 2. An apartment building has the following apartments: 1 bedroom 2 bedroom 3 bedroom 1st floor 3 1 1 2nd floor 2 2 2 3rd floor 1 4 1 If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor? 2/15 2/7 11/15 15/17 3. What probability value would be needed to...

1) TRUE OR FALSE: Parameters yield populations 2) TRUE OR FALSE: In a study entitled the...

1) TRUE OR FALSE: Parameters yield populations 2) TRUE OR FALSE: In a study entitled the relationship between study time and grades, study time is the predictor variable. 3) TRUE OR FALSE: Only experiments involve direct measurement by the researcher. 4) A response variable is also an outcome variable. 5) Statistical methods that use sample data to make statements about populations are called inferential statistics. 6) The IV is the variable that can be randomly assigned by the researcher.

determine if it is TRUE or FALSE. If you determine it to be a FALSE statement,change...

determine if it is TRUE or FALSE. If you determine it to be a FALSE statement,change it to be a TRUE statement. A. TRUE or FALSE: It was a hot July day and you are dehydrated; you notice that your urine production decreases. One of the reasons for this is because filtration decreases as a result of the decrease in glomerular plasma osmotic pressure. B. TRUE or FALSE: After leaving the right atrium, blood then passes through the tricuspid valve...

True or False The change in enthalpy of a hypotehtical reversible process and the change in...

True or False The change in enthalpy of a hypotehtical reversible process and the change in enthalpy of it's representative actual processes are equal? Entropy production is greater for an irreversible process than a reversible process?

true or false For an elastic demand curve, a 1% change in price results in a...

true or false For an elastic demand curve, a 1% change in price results in a greater than 1% change in the quantity demanded. When Colgate offers several different types of toothpaste to consumers who live in a geographically isolated community, this is an example of “captive product pricing.” An example of Optional product pricing would be the optional features when purchasing a new car. A society with three manufacturers, three customers, and no distributors will require nine exchanges in...