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Channel: Heat & Thermodynamics – Ask Physics
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A Problem from Specific Heat of Gases

Priyanshi Gaur posted”: “A sample of air weighing 1.18g occupies 1000 cubic cm when kept at 300 K at 1000000 Pa.When 2 cal of heat is added to it at constant volume, its temperature increases by 1...

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Specific Heat capacity and Molar specific Heat capacity

Chaitanya asked: “how to calculate molar the heat capacity of a gas given cp and cv of the gas?”   Answer: Specific heat capacity of a substance is the quantity of heat required to raise the...

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Thermal Expansion Problem

Meenu asked: A metre scale is calibrated at 0 degree celsius to give correct reading. Find the distance between 50 cm and 51 cm if the scale is used at 10 degree celsius. Coefficient of linear...

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INTENSIVE VARIABLES AND EXTENSIVE VARIABLES

A thermodynamic variable may be intensive or extensive. What are intensive variables? The variables which are independent of size or amount of substance are called intensive variables.  Example:...

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Heat! Heat! Heat!

Thermal vibration of a segment of protein alpha helix. The amplitude of the vibrations increases with temperature. (Photo credit: Wikipedia) A glass ball at -10 degrees C is placed in 500 ml of water...

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Why gases have 2 specific heats?

Why gases have 2 specific heats? Akhil Francis Specific heat capacity at constant pressure and specific heat capacity at constant volume……It is because heat energy supplied at constant Pressure changes...

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