Indicate whether the following experimental mistakes will increase or decrease the calculated value of R; explain...
Indicate whether the following experimental mistakes will increase or decrease the calculated value of R; explain your answers.
a.) In adjusting the final water level after the O2 was produced, the student adjusted the levels to the bottom of the water in the beaker and the top of the water in the flask (rather than correctly the top of each).
b.) A student completed the experiment without waiting for the test tube to cool after heating.
Homework Answers
Answer:
a) PV = nRT
According to the question the volume is adjusted means the volume is less than actual volume.
PV = nRT
R = PV / nT
The volume is less means the caluculated R value is also less.
b) Effect of Temperature:
PV = nRT
R = PV / nT
Here the R inversely proportional to T
According to the question T is more, Hence the R value become less.
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