Use the pump to add 250 molecules of the heavy species gas. How does the temperature change?

Chemistry

1 answer:

OLEGan [10]3 years ago

6 0

Answer:

When you begin to add the molecules, the temperature inside the container is 300 K. After all 250 molecules have been added, the temperature inside the container is 300 K.

You might be interested in

A compound that conducts an electric current in aqueous solution or in the molten state.

makvit [3.9K]

Answer:

A compound that conducts an electric current in aqueous solution or in the molten state is a ionic compound.

E.g. NaCl (table salt)

Explanation:

Some examples of ionic compounds are NaCl, KF, KI, MgSO₄.

Ionic compounds are formed by positivie ions (named cations) and negative ions (named anions). The strong electrostatic atraction between cations and anions permits the formation of crystals, which are stuctures characterized by a regular pattern. In solid state the ions are in fixed positions.

In order to conduct electricity, the charged particles (cations and anions in the case of the ionic compounds) need to move freely.

Hence, since in solid state, ionic compounds do not conduct electric current. But, in molten (liquid) state or in aqueous solution, ionic compounds conduct electric current because, then, the ions move freely.

7 0

3 years ago

How's everyone's day today? Just type in the comments since when chu answer my question i can see what chu said to give chu poin

SVEN [57.7K]

My day was good!! Thank you so much for asking :)

┈┈╭━╱▔▔▔▔╲━╮┈┈┈
┈┈╰╱╭▅╮╭▅╮╲╯┈┈┈
╳┈┈▏╰┈▅▅┈╯▕┈┈┈┈
┈┈┈╲┈╰━━╯┈╱┈┈╳┈
┈┈┈╱╱▔╲╱▔╲╲┈┈┈┈
┈╭━╮▔▏┊┊▕▔╭━╮┈╳
┈┃┊┣▔╲┊┊╱▔┫┊┃

8 0

2 years ago

Hydrogen, a potential future fuel, can be produced from carbon (from coal) and steam by the following reaction: C(s)+2H2O(g)→2H2

madam [21]

The question is incomplete , complete question is:

Hydrogen, a potential future fuel, can be produced from carbon (from coal) and steam by the following reaction:

$C(s)+ 2 H_2O(g)\rightarrow 2H_2(g)+CO_2(g).\Delta H=?$

Note that the average bond energy for the breaking of a bond in CO2 is 799 kJ/mol. Use average bond energies to calculate ΔH of reaction for this reaction.

Answer:

The ΔH of the reaction is -626 kJ/mol.

Explanation:

$C(s)+ 2 H_2O(g)\rightarrow 2H_2(g)+CO_2(g).\Delta H=?$

We are given with:

$\Delta H_{H-O}=459 kJ/mol$