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Question

There is 10 litre of a gas at STP. Which of the following changes keep the volume constant:

A
temperature constant and pressure doubled
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B
temperature doubled and pressure trippled
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C
temperature and pressure are doubled
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D
temperature doubled and pressure constant
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Solution

The correct option is C temperature and pressure are doubled
There is 10 litre of gas at STP. The changes 237oC and 2atm keeps the volume constant.
PV=nRT
Hence, VαTP (at constant n)
Thus, when both temperature and pressure are doubled, the volume remains coonstant.

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