For an experiment on specific heat capacities my data for measured specifi heats was consistently higher than the accepted values. I am not sure why this is. Would it be because my initial temperature that I started the experiment with was higher than it should have been?
Thank you for you help!
That could be A reason but that isn't the only one. Think about how you did the experiment. If you used a standard like benzoic acid that could have been impure or it was weighed incorrectly. The final temperature may have not been recorded correctly. I would think it could be any one of several reasons (or a combination).
Thank you!
You're welcome! I'd be happy to help you figure out why your measured specific heat values are consistently higher than the accepted values in your experiment. It's possible that the initial temperature of your experiment could be a contributing factor, but there are a few other factors you should consider as well.
Here are some steps to troubleshoot the issue:
1. Double-check your measurements: Ensure that you are accurately measuring the mass of the substance and the change in temperature during the experiment. Small errors in measuring these values can lead to significant differences in your calculated specific heat values.
2. Consider the calorimeter: If you are conducting the experiment using a calorimeter, it's essential to verify that it is well-insulated and does not allow for significant heat transfer to the surroundings. Any heat loss to the surroundings can lead to an overestimation of the specific heat capacity.
3. Evaluate the purity of the substance: The presence of impurities can affect the specific heat capacity. If the substance you are testing is impure, it may have a different specific heat capacity than the accepted value.
4. Analyze the experimental procedure: Review your experimental procedure to ensure that all the steps were followed correctly. Any deviations or oversights during the experiment could result in inaccurate measurements.
5. Compare with similar studies: Look for published research or experiments that have studied the specific heat capacity of the substance you are testing. If their values differ from the accepted values and align with your measurements, it could indicate a variation in the properties of the specific substance.
Remember, the scientific process involves troubleshooting and analyzing possible variables that may be influencing your results. By carefully considering each factor and comparing with existing knowledge, you can gain a better understanding of why your measured specific heat values differ from the accepted values.