Chemistry
Grade-9
Easy
Question
When the volume of a gas is 400mL, the pressure is 750 torr. If the gas is allowed to grow to 600mL at constant temperature, compute the pressure (in atm).
1.48atm
0.5atm
0.660atm
0.067atm
1.48atm
0.5atm
0.660atm
0.067atm
Hint:
At constant temperature the product of initial pressure and volume is equal to product of final pressure and volume.
The correct answer is: 0.660atm
The correct option is c)0.660atm.
We will use the formula,
P1V1 = P2V2 ( AT CONSTANT TEMPERATURE)
P1 = 750 torr
V1 = 400ml
P2 = ?
V2 = 600 ml
Now, substituting the values
750 x 400 = P2 x 600
P2 = 
P2 = 500 torr =0.660 atm
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