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A mixture of hydrogen and oxygen is enclosed in a rigid insulating cylinder. It is ignited by a spark. The temperature and pressure both increase considerably. - Physics

Short Note

A mixture of hydrogen and oxygen is enclosed in a rigid insulating cylinder. It is ignited by a spark. The temperature and pressure both increase considerably. Assume that the energy supplied by the spark is negligible, what conclusions may be drawn by application of the first law of thermodynamics?

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Solution

The internal energy of a system is the sum of potential energy and kinetic energy of all the constituents of the system. In the example stated above, the conversion of potential energy into kinetic energy is responsible for a considerable rise in pressure and temperature of the mixture of hydrogen and oxygen ignited by the spark.

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APPEARS IN

Balbharati Physics 12th Standard HSC Maharashtra State Board
Chapter 4 Thermodynamics
Exercises | Q 3.1 | Page 107
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