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vredina [299]
1 year ago
10

which best explains why greg’s hands get warm as he holds a bowl of hot soup? heat energy is created from the thermal energy in

greg’s hands. heat energy is absorbed by the soup from greg’s hands. thermal energy from the soup moves to greg’s hands. thermal energy from the surrounding air moves to greg’s hands.
Chemistry
2 answers:
katovenus [111]1 year ago
5 0

Answer: the statement that <em>best explains why Greg's hands get warm as he holds a bowl of hot soup</em> is that the <em>thermal energy from the soup moves to Greg's hands</em>.


Explanation:


<em>Thermal energy</em> is the kinetic energy that the particles (atoms, molecules or ions) of a substance posses.


When hot substance (the<em> bowl of hot soup</em> that Greg holds) gets in contact with a cool substance (<em>Greg's hands</em>) part of the kinetic energy of the particles in the hotter substance is spontaneoulsy transferred to the cooler substance. This transferred energy is called heat energy.


There are three different mechanisms through which the heat energy transference is explained: conduction, convection and radiation, which are not necessary to explain here.


You just need to know that the <em>hot soup </em>transfers part of its <em>thermal energy</em> to the <em>bowl</em> walls, with which the soup is in direct contact, and the (now) hot  bowl transfers part of its thermal energy <em>to Greg's hands</em>, which now get warm.

Lady_Fox [76]1 year ago
3 0
Thermal energy from the soup moves to gregs hands 
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Answer:

The correct solution will be "+3".

Explanation:

The given values are:

Number of protons

= 13

Number of neutrons

= 14

Number of electrons

= 10

As we know,

⇒  Charge = Number \ of \ protons - Number \ of \ electrons

On putting the estimated values, we get

⇒               =13 - 10

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2 years ago
5. Hydrochloric Acid + Sodium Hydroxide à Sodium<br> Chloride +
erma4kov [3.2K]

HCl Acid + Sodium Hydroxide ----> Sodium  Chloride + water.

<u>Explanation</u>:

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                             HCl + NaOH → NaCl + H2O + Heat

  • The heat evolved in the neutralization reaction raises the temperature of the reaction mixture.    
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1 year ago
Write the expression for the equilibrium constant Kp for the following reaction.Enclose pressures in parentheses and do NOT writ
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<u>Answer:</u> The expression for K_p is written below.

<u>Explanation:</u>

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of the products and the reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

For a general chemical reaction:

aA+bB\rightleftharpoons cC+dD

The expression for K_p is written as:

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For the given chemical equation:

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The expression for K_p for the following equation is:

K_p=\frac{(P NH_3)\times (P H_2S)}{(P NH_4HS)}

The partial pressure of NH_4HS will be 1 because it is solid.

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K_p=\frac{(P NH_3)\times (P H_2S)}{1}

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2 years ago
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This is an incomplete question, the given sketch is shown below.

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