حرارت کی گنجائش ماس اور ______ کی پیداوار ہے؟
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A. Boiling point
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B. Freezing point
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C. Energy
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D. Specific heat of material
Explanation
Heat capacity is the amount of heat energy required to change the temperature of a substance by a given amount.
It is calculated as the product of the mass of the substance and its specific heat capacity:
Heat Capacity = mass x specific heat capacity
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A. 50atm
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B. 190atm
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C. 20-40atm
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D. None of these
Explanation
The pressure of oxygen inside a bomb calorimeter is typically 20-40 atmospheres or 20-40 bar,
It is equivalent to 2026.5 to 4053 kPa or 2.0265 to 4.053 MPa.
This high pressure ensures complete combustion of the sample being tested.
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