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Sir i want to know how to solve question number 19 and 20

Sir i want to know how to solve question number 19 and 20

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Grade:11

2 Answers

Arun
25763 Points
one year ago
Dear Vaibhav
 
Please ask only one Question in one thread. As it is against forum policy.
 
Hope you understand.
Aman
24 Points
one year ago
D) is correct option for question 19
Consider intially pressure=P  ,initial volume=V
When temperature is constant ,from ideal gas equation
P*V=n*R*T,this implies P*V=constant...
When volume is decreased by 10% the final volume becomes =0.9V 
Use the above equation to find the final pressure.
P*V=(0.9V)*(final pressure).
Hope it helps
 
 

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