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
  
• B. temperature doubled and pressure trippled
  
• C. temperature and pressure are doubled
• D. temperature doubled and pressure constant

Answer 1

The correct option is C temperature and pressure are doubled

There is 10 litre of gas at STP. The changes ${237}^{o}C$ and $2atm$ keeps the volume constant.

$PV=nRT$

Hence, $V\alpha \frac{T}{P}$ (at constant n)

Thus, when both temperature and pressure are doubled, the volume remains coonstant.