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fgiga [73]
3 years ago
7

Heat is thermal energy transferred from one object to another because of a difference in

Chemistry
1 answer:
DedPeter [7]3 years ago
4 0

Due to "<u>Temperature</u>" difference heat is transferred from "one object" to "another object".

<u>Explanation</u>:

In general there are three ways for heat to be transferred: Conduction (heat is transferred by vibration of particles), Convection (heat is transferred by movement of particles) & Radiation (heat is transferred in Infrared waves). Heat is also called as thermal energy which acts as kinetic energy when energy is given to atoms, molecules, ions in solids, liquids and gases due to which movement takes place. As heat flows from higher temperature to lower temperature and heat content “Q” of an object depend upon its specific heat “c” and its mass “m”. For example when ice cube is added to room temperature water then transfer of heat energy will take place due to which ice melts in water and both of them reach to a common temperature which is also called as “Thermal Equilibrium” phase.

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Answer:

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Explanation:

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3 years ago
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How many liters of volume is one mole of gas at standard temperature and<br> pressure?
horsena [70]

22.7 liters

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3 0
2 years ago
If an ice cube is placed in a sealed container and heated until it becomes steam, what will happen to the mass of the ice?
OLga [1]
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3 years ago
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Consider the change given below. At constant pressure, is work done by the system on the surroundings? By the surroundings on th
alexira [117]

Answer : At constant pressure work is done by the system on the surroundings.

Explanation :

Work done : Any quantity that flows across the boundary of a system during a change in its state and it completely convertible into the lifting of a weight in the surroundings.

Formula for work done is:

w=-p_{ext}dV

Sign convention :

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w = (-ve)

  • When volume compress then surrounding work that means work done on the system.

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The given reaction is:

Hg(l)\rightarrow Hg(g)

This is a evaporation process in which phase changes from liquid state to gaseous state at constant temperature.

At constant pressure, work depends only on volume.

In evaporation process, the volume expand that means work is done by the system on the surroundings.

Sign convention is, w = (-ve)

Thus, at constant pressure work is done by the system on the surroundings.

7 0
3 years ago
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