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3 years ago

A baker touches a pie right after taking it out of the oven. Which statement best explains why the pie feels hot?

2 answers:

6 0

The answer is letter B, because according to the Second Law of Thermodynamics heat can only move from a hotter body to one of colder temperature. So that's your answer: as the molecules in the pie move faster (are hotter) than the ones in the skin, heat is transfered from the pie to the skin.

EastWind [94]3 years ago

4 0

Answer: the answer is B because i just got it

You might be interested in

Given the values of ΔGfo given below in kJ/mol, calculate the value of ΔGo in kJ for the combustion of 1 mole of butane to form

xz_007 [3.2K]

Answer:

Δ $_rG=-2753kJ$

Explanation:

Hello,

Butane's combustion is:

$C_4H_{10}+\frac{13}{2} O_2-->4CO_2+5H_2O$

Now the change in the Gibbs free energy for this reaction is computed via (don't forget that oxygen's Gibbs free energy of formation is 0 since it is an element):

Δ $_rG=$ 4Δ $_fG_{CO_2}+$ 5Δ $_fG_{H_2O}$ -Δ $_fG_{C_4H_{10}}$

Δ $_rG=4(-395kJ/mol)+5(-238kJ/mol)-(-17kJ/mol)$

Δ $_rG=-2753kJ/mol$

Now, since the calculation is done for 1 mol of butane, the change in the Gibbs free energy for this fuel is:

Δ $_rG=-2753kJ$

Best regards.

4 0

3 years ago

Which of the following molecules has the shortest bond length?

Sveta_85 [38]

N₂

Explanation:

The molecule with the shortest bond length is nitrogen gas N₂ because it has a triple bond between the covalently bonded atom.

Molecules with more number of bonds are usually stronger.
The bond length is the average distance between two nuclei that are bonded in a molecule.
Single bonds are usually very long and relatively weaker in nature. They easily broken and forms between atoms that are large in size because their nuclei is far from each other.
Double bonds are stronger than single bonds and longer in nature.
Triple bonds such as seen in Nitrogen gas are very strong bond types. They are the shortest.

Learn more:

Bonds brainly.com/question/5160474

#learnwithBrainly

7 0

3 years ago

A hypothesis does not need to be correct for an experiment to be successful because

son4ous [18]

That is true because a hypothesis is like a conclusion, a thinking of what could happen

6 0

3 years ago

Which one of these is an example of a virus that can affect a range of hosts? A) the varicella virus B) the rabies virus C) the

Sedaia [141]

Answer:

B) the rabies viru

Explanation:

5 0

2 years ago

Enter the formula for the polyatomic ion in MnCO3.

joja [24]

The formula is Mn2+CO2= MnCO3

8 0

3 years ago